More than 100 people have died in Gaza in six days of airstrikes by Israel, according to Hamas officials as diplomatic efforts continued to find ways to end the escalating conflict.

Monday's fatalities include a commander of the Islamic Jihad militant group.

President Barack Obama called Egyptian president Mohammad Morsi and Israeli prime minister Benjamin Netanyahu on Monday to discuss the ongoing violence.

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Smoke rises following an Israeli attack on smuggling tunnels between Gaza and Egypt

In a statement, the White House said the president and Mr Morsi discussed ways to de-escalate the situation in Gaza whil Mr Obama also stressed the urgent need for Hamas to stop firing rockets into Israel.

British foreign secretary William Hague praised Egyptian ceasefire negotiations for averting an Israeli ground invasion so far in the Gaza crisis.

He said the fact that Israel was holding back from an invasion of Gaza, and that rocket attacks on Israel were lessening, were "positives" in an otherwise desperate situation.

Mr Hague was speaking after talks in Brussels in which EU foreign ministers voiced full support for continuing international peace efforts.

As well as the Palestinian casualties, there have been three Israelis reported killed by Israeli air strikes on Gaza which began last week in response to a wave of rocket attacks on Israeli towns and cities from the Palestinian enclave.

Mr Hague repeated Britain's position that Gaza's Hamas rulers were to blame for starting the offensive, but said Israel also had a responsibility to "de-escalate" the violence.

Leaving Brussels, he paid tribute to Egyptian efforts to negotiate "a ceasefire that can work".

He went on: "I am pleased that Israel has held back from a ground invasion while such negotiations go on, and that the rate of rocket attacks on Israel has fallen, for whatever reason, over the last 24 hours.

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William Hague (right) talks with Bulgarian foreign minister Nikolay Mladenov at Monday's meeting in Brussels

"These are positive developments, but of course it remains a desperately serious and difficult situation".

Mr Hague said everyone across Europe remained gravely concerned about Gaza, and EU governments, including the UK, fully supported continuing peace efforts.

A declaration from the foreign ministers emphasised Israel's "right to protect its population" but said any response to rocket attacks from Gaza had to be proportionate.

"The European Union expresses grave concern about the situation in Gaza and Israel and deeply regrets the loss of civilian life on both sides," said a statement from the foreign ministers.

"All attacks must end immediately as they cause unjustifiable suffering of innocent civilians. It (The EU) therefore calls for an urgent de-escalation and cessation of hostilities."

The statement demanded an "urgent de-escalation and cessation of hostilities" on both sides and gave full EU support to ceasefire efforts and a UN peace mission.

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Palestinians carry an injured man from a bombed building in Gaza city after the second attack on the building in two days

It went on: "There can be no justification for the deliberate targeting of innocent civilians. Israel has the right to protect its population from these kinds of attacks; in doing so it must act proportionately and ensure the protection of civilians at all times."

The EU stressed the need for all sides to fully respect international humanitarian law.

"The current situation underlines once more the urgent need to move towards a two-state solution allowing both sides to live side-by-side in peace and security. The European Union will continue working with all those with influence in the region to bring this about."

Earlier, EU foreign policy chief Catherine Ashton, who chaired Monday'ss meeting, said she had been in touch with Israel's prime minister and with the Arab League: "We need to find a long-term solution to Gaza. We have to find a way to prevent violent attacks and to bring security and peace to people in the region.

"It fits in absolutely with what the EU has consistently said about a two-state solution."

Hamas has said that Israeli prime minister Benjamin Netanyahu had asked for a truce although Israel has denied this.

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Speaking at a news conference in Cairo, Khaled Meshaal, exiled leader of Hamas, said a truce was possible but Israel must halt its strikes first and lift its blockade of Gaza.

He added that Netanyahu was concerned about the impact of a "land war" domestically because of elections in January.

"He can do it, but he knows that it will not be a picnic and that it could be his political death and cost him the elections," Meshaal told Reuters.

Turkey's prime minister Recep Tayyip Erdogan has condemned Israel as a "terrorist state", citing the "massacre of children" during its bombardments of Gaza, the BBC reported.

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Charities have expressed concern about the safety of children in the current conflict

Foreign office minister Alistair Burt has arrived in Israel for a three-day visit, during which he will also go to the Gaza Strip.

He will meet senior Israeli ministers and Palestinian president Mahmoud Abbas and prime minister Salam Fayyad.

On Monday he visited Kiryat Malachi where a rocket hit a residential building killing three Israeli civilians last week.

"I am gravely concerned about the current crisis, particularly the loss of civilian life on both sides," he said.

"Today I have seen for myself the impact of this conflict, and the terrible toll and suffering it is inflicting on families and communities across Israel. Coming here has given me a sense of what life is like for people under attack, and the appalling devastation that rockets attacks bring.

"The people in villages, towns and cities across Israel have the right to live without the constant fear of rocket attacks.

"I look forward to speaking tomorrow to President Abbas to discuss the human impact of the conflict in Gaza, where rising numbers of civilian casualties are a real cause for concern."

Meanwhile, charities have urged world leaders to enforce a ceasefire in Gaza to protect civilian lives and infrastructure.

A group of 38 charities said the international community must apply immediate pressure on the Israelis government to keep the crossings to Gaza open to allow in supplies of essential humanitarian aid, push all parties to the conflict to end violence and uphold their obligations under international law.

Nishant Pandey, of Oxfam, said:"World leaders cannot sit by while civilian casualties in Gaza and Israel continue to mount. We urgently need to enforce a ceasefire.

"The present conflict threatens to perpetuate and worsen the humanitarian impact on Palestinian civilians in Gaza of over five years of Israeli blockade and the 2008/09 Israeli military operation Cast Lead.

"It will only deepen despair, create more insecurity, and jeopardise chances for Israelis and Palestinians to reach a just and durable peace."

The agencies said it was critical that the protection of civilians was prioritised by the parties to the conflict as outlined by international humanitarian law.

Save the Children country director Alex Schein said: "Save the Children is deeply concerned by the recent escalation of violence in Gaza and Israel.

"Children are already among the dead and, as always, children bear the hardest burden during military conflict.

"Save the Children urges all parties to end the violence immediately."

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  • Smoke rises following an Israeli attack on smuggling tunnels on the border between Egypt and Rafah, southern Gaza Strip, Monday, Nov. 19, 2012. (AP Photo/Eyad Baba)

  • A Palestinian demonstrator holds a poster depicting Israeli Prime Minister Benjamin Netanyahu holding a leashed dog superimposed with the head U.S. President Barack Obama, with illustrations of Israel's separation barrier on the left and the gates of Auschwitz Nazi death camp on the right, during a protest against the Israeli military operations in Gaza Strip, near the West Bank city of Nablus, Monday, Nov. 19, 2012. (AP Photo/Nasser Ishtayeh)

  • The dead body of a Palestinian woman from the Abdel Aal family is pulled out from the rubble after the family house collapsed during an Israeli forces strike in the Tufah neighbourhood, Gaza City, Sunday, Nov. 18, 2012. The Israeli military widened its range of targets in the Gaza Strip on Sunday to include the media operations of the Palestinian territory's Hamas rulers, sending its aircraft to attack two buildings used by both Hamas and foreign media outlets. (AP Photo/Majed Hamdan)

  • A member of the Abdel Aal family is rescued after his family house collapsed during an Israeli forces strike in the Tufah neighbourhood, Gaza City, Sunday, Nov. 18, 2012. The Israeli military widened its range of targets in the Gaza Strip on Sunday to include the media operations of the Palestinian territory's Hamas rulers, sending its aircraft to attack two buildings used by both Hamas and foreign media outlets. (AP Photo/Majed Hamdan)

  • Palestinians carry bodies of members of the Daloo family during their funeral in Gaza City, Monday, Nov. 19, 2012. At least eleven members of the Daloo family were killed on Sunday when an Israeli missile struck the two-story home of the family in a residential area of Gaza City. (AP Photo/Bernat Armangue)

  • The body of 11-month old Ibrahim Daloo is carried by mourners past reporters during a funeral for members of the Daloo family in Gaza City, Monday, Nov. 19, 2012. Eleven members of the Daloo family were killed on Sunday when an Israeli missile struck the two-story home of the family in a residential area of Gaza City. (AP Photo/Hatem Moussa)

  • Palestinians pray over the bodies of farmers Amin Bashir, 40, and Tamer Bashir, 30, during their funeral in Deir Al Balah, central Gaza Strip, Monday, Nov. 19, 2012. The Palestinian civilian death toll mounted Monday as Israeli aircraft struck densely populated areas in the Gaza Strip in its campaign to quell militant rocket fire menacing nearly half of Israel's population. (AP Photo/Adel Hana)

  • Palestinians pray over the bodies of farmers Amin Bashir, 40, and Tamer Bashir, 30, during their funeral in Deir Al Balah, central Gaza Strip, Monday, Nov. 19, 2012. The Palestinian civilian death toll mounted Monday as Israeli aircraft struck densely populated areas in the Gaza Strip in its campaign to quell militant rocket fire menacing nearly half of Israel's population. (AP Photo/Adel Hana)

  • Palestinian mourners carry the body of farmer Amin Bashir, 40, during his funeral in Deir Al Balah, central Gaza Strip, Monday, Nov. 19, 2012. The Palestinian civilian death toll mounted Monday as Israeli aircraft struck densely populated areas in the Gaza Strip in its campaign to quell militant rocket fire menacing nearly half of Israel's population. (AP Photo/Adel Hana)

  • A protester from a student union shouts slogans during a protest outside Israeli Embassy in New Delhi, India, Monday, Nov. 19, 2012. The protest was against the Israeli military operations in Gaza Strip, near the West Bank city of Nablus. (AP Photo/Manish Swarup)

  • A protester from a student union shouts slogans during a protest outside Israeli Embassy in New Delhi, India, Monday, Nov. 19, 2012. The protest was against the Israeli military operations in Gaza Strip, near the West Bank city of Nablus. (AP Photo/Manish Swarup)

  • Protesters from various student unions shout slogans during a protest outside Israeli Embassy in New Delhi, India, Monday, Nov. 19, 2012. The protest was against the Israeli military operations in Gaza Strip, near the West Bank city of Nablus. (AP Photo/Manish Swarup)

  • Smoke trails are seen after ordnance were fired by Palestinian militants from Gaza City towards southern Israel, Monday, Nov. 19, 2012. (AP Photo/Hatem Moussa)

  • Protesters from various student unions shout slogans during a protest outside Israeli Embassy in New Delhi, India, Monday, Nov. 19, 2012. The protest was against the Israeli military operations in Gaza Strip, near the West Bank city of Nablus. (AP Photo/Manish Swarup)

  • Smoke and fire are seen from an explosion by a high rise housing media organizations in Gaza City, Monday, Nov. 19, 2012. It's the Israel's military second strike on the building in two days. The Hamas TV station, Al Aqsa, is located on the top floor. (AP Photo/Hatem Moussa)

  • Pakistani students light candles to condemn the Israeli offensive in Gaza in Karachi, Pakistan, Monday, Nov. 19, 2012. (AP Photo/Shakil Adil))

  • Smoke is seen from an explosion by a high rise housing media organizations in Gaza City, Monday, Nov. 19, 2012. It's the Israel's military second strike on the building in two days. The Hamas TV station, Al Aqsa, is located on the top floor. (AP Photo/Hatem Moussa)

  • Smoke and fire are seen from an explosion by a high rise housing media organizations in Gaza City, Monday, Nov. 19, 2012. It's the Israel's military second strike on the building in two days. The Hamas TV station, Al Aqsa, is located on the top floor. (AP Photo/Hatem Moussa)

  • A Palestinian inspects damaged cars following an Israeli air strike in Rafah southern Gaza Strip, Monday, Nov. 19, 2012. (AP Photo/Hatem Omar)

  • Fire is seen from the explosion at a high rise housing media organizations in Gaza City, Monday, Nov. 19, 2012. It's the Israel's military second strike on the building in two days. The Hamas TV station, Al Aqsa, is located on the top floor. (AP Photo/Hatem Moussa)

  • Smoke and fire are seen from the explosion by a high rise housing media organizations in Gaza City, Monday, Nov. 19, 2012. It's the Israel's military second strike on the building in two days. The Hamas TV station, Al Aqsa, is located on the top floor. (AP Photo/Hatem Moussa)

  • Israeli police sappers remove the remains of an ordnance fired by Palestinian militants from the Gaza Strip that landed in the southern Israeli town of Ashkelon, Monday, Nov. 19, 2012. Exchange of fire between Israel and Gaza militants continued for the sixth day on Monday.(AP Photo/Tsafrir Abayov)

  • Palestinians carry injured people after an Israeli strike on a building in Gaza City, Monday, Nov. 19, 2012. It's the Israel's military second strike on the building in two days. Palestinian militant group Islamic Jihad says an Israeli strike on a Gaza media center has killed one of its top militant leaders. (AP Photo/Bernat Armangue)

  • Palestinians firefighters try to extinguish a fire after an Israeli strike on a building of Gaza City, Monday, Nov. 19, 2012. Palestinian militant group Islamic Jihad says an Israeli strike on a Gaza media center has killed one of its top militant leaders. (AP Photo/Bernat Armangue)

  • Palestinians firefighters try to extinguish a fire after an Israeli strike on a building of Gaza City, Monday, Nov. 19, 2012. Palestinian militant group Islamic Jihad says an Israeli strike on a Gaza media center has killed one of its top militant leaders. (AP Photo/Bernat Armangue)

  • Israeli border policemen run during a protest against the Israeli military operations in Gaza Strip near the West Bank city of Nablus, Monday, Nov. 19, 2012. Israeli aircraft struck crowded areas in the Gaza Strip and killed a senior militant with a missile strike on a media center Monday, driving up the Palestinian death toll to 96, as Israel broadened its targets in the 6-day-old offensive meant to quell Hamas rocket fire on Israel. (AP Photo/Nasser Ishtayeh)

  • Israeli women take cover in a stairwell as a siren signals the warning of incoming rockets in the coastal city of Ashkelon, Monday, Nov. 19, 2012. Israeli aircraft struck crowded areas in the Gaza Strip and killed a senior militant with a missile strike on a media center Monday, driving up the Palestinian death toll to 96, as Israel broadened its targets in the 6-day-old offensive meant to quell Hamas rocket fire on Israel. (AP Photo/Tsafrir Abayov)

  • Palestinians remove debris from a building that was damaged after an Israeli strike, in Gaza City, Monday, Nov. 19, 2012. It's the Israel's military second strike on the building in two days. Palestinian militant group Islamic Jihad says an Israeli strike on a Gaza media center has killed one of its top militant leaders. (AP Photo/Bernat Armangue)

  • Palestinians carry an injured man after an Israeli strike on a building, in Gaza City, Monday, Nov. 19, 2012. It's the Israel's military second strike on the building in two days. Palestinian militant group Islamic Jihad says an Israeli strike on a Gaza media center has killed one of its top militant leaders. (AP Photo/Bernat Armangue)

  • Israeli soldiers lie on the ground as an Iron Dome missile is launched near the city of Ashdod, Israel, Monday Nov 19. 2012. Israeli aircraft struck crowded areas in the Gaza Strip and killed a senior militant with a missile strike on a media center Monday, driving up the Palestinian death toll to 96, as Israel broadened its targets in the 6-day-old offensive meant to quell Hamas rocket fire on Israel. (AP Photo/Moti Milrod) ISRAEL OUT

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    A Palestinian youth throws a rock at Israeli border gaurds during clashes in the West Bank town of Nablus, on November 18, 2012, as Palestinian across the territories protest against Israel's military action on the Gaza Strip. Israel's Foreign Minister Avigdor Lieberman said that Israel would not negotiate a truce with Gaza Strip's Hamas rulers as long as rocket fire continues from the Palestinian enclave. AFP PHOTO / JAAFAR ASHTIYEH (Photo credit should read JAAFAR ASHTIYEH/AFP/Getty Images)

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    A Palestinian stone thrower jumps as tear gas is fired by Israeli soldiers during clashes in the West Bank town of Nablus, on November 18, 2012, as Palestinian across the territories protest against Israel's military action on the Gaza Strip. Israel's Foreign Minister Avigdor Lieberman said that Israel would not negotiate a truce with Gaza Strip's Hamas rulers as long as rocket fire continues from the Palestinian enclave. AFP PHOTO / JAAFAR ASHTIYEH (Photo credit should read JAAFAR ASHTIYEH/AFP/Getty Images)

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    An Israeli soldier smokes a cigarette next to a convey of tanks at an Israeli army deployment area near the Israel-Gaza Strip border as they prepare for a potential ground operation in the Palestinian coastal enclave on November 19, 2012. Israeli air strikes killed 10 Palestinians raising the toll to 87, as Israel pushed raids against Gaza militants into a sixth day amid a flurry of efforts to broker a truce. AFP PHOTO/MENAHEM KAHANA (Photo credit should read MENAHEM KAHANA/AFP/Getty Images)

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    Israeli soldiers from a tank squadron check their weapons at an Israeli army deployment area near the Israel-Gaza Strip border on November 19, 2012. The Israeli cabinet gave its green light for the recruitment of up to 75,000 reservists, Channel 2 television said, amid signs that Israel was gearing up for a ground offensive in Gaza. AFP PHOTO / JACK GUEZ (Photo credit should read JACK GUEZ/AFP/Getty Images)

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    An Israeli soldier sits on top of a tank at an Israeli army deployment area near the Israel-Gaza Strip border as they prepare for a potential ground operation in the Palestinian coastal enclave on November 19, 2012. Israeli air strikes killed 10 Palestinians raising the toll to 87, as Israel pushed raids against Gaza militants into a sixth day amid a flurry of efforts to broker a truce. AFP PHOTO/MENAHEM KAHANA (Photo credit should read MENAHEM KAHANA/AFP/Getty Images)

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    Israeli soldiers wearing 'Talit' (prayer shawls) and 'Tefilin' (phylacteries) conduct morning prayers at an Israeli army deployment area near the Israel-Gaza Strip border as they prepare for a potential ground operation in the Palestinian coastal enclave on November 19, 2012. Israeli Prime Minister Benjamin Netanyahu said that Israel is ready to 'significantly expand' its operation against militants in the Hamas-run Gaza Strip as it entered its sixth day. AFP PHOTO/MENAHEM KAHANA (Photo credit should read MENAHEM KAHANA/AFP/Getty Images)

  • Israeli Troops Continue To Gather On Border As UN Call For Truce

    ISRAEL/GAZA BORDER, ISRAEL- NOVEMBER 19: (ISRAEL OUT) An Israeli soldier sits in his tank in a deployment area on November 19, 2012 on Israel's border with the Gaza Strip. The death toll has risen to at least 85 killed in the air strikes, according to hospital officials, on day six since the launch of operation 'Pillar of Defence.' (Photo by Uriel Sinai/Getty Images)

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    An Israeli soldier sleeps on top of a tank at an Israeli army deployment area near the Israel-Gaza Strip border as they prepare for a potential ground operation in the Palestinian coastal enclave on November 19, 2012. Israeli air strikes killed 10 Palestinians raising the toll to 87, as Israel pushed raids against Gaza militants into a sixth day amid a flurry of efforts to broker a truce. AFP PHOTO/MENAHEM KAHANA (Photo credit should read MENAHEM KAHANA/AFP/Getty Images)

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    An Israeli soldier from a tank squadron wearing 'Talit' (prayer shawls) prays on top of a tank in an Israeli army deployment area near the Israel-Gaza Strip border on November 19, 2012. The Israeli cabinet gave its green light for the recruitment of up to 75,000 reservists, Channel 2 television said, amid signs that Israel was gearing up for a ground offensive in Gaza. AFP PHOTO / JACK GUEZ (Photo credit should read JACK GUEZ/AFP/Getty Images)

  • Israeli Troops Continue To Gather On Border As UN Call For Truce

    ISRAEL/GAZA BORDER, ISRAEL- NOVEMBER 19: (ISRAEL OUT) An Israeli soldier walks in a deployment area on November 19, 2012 on Israel's border with the Gaza Strip. The death toll has risen to at least 85 killed in the air strikes, according to hospital officials, on day six since the launch of operation 'Pillar of Defence.' (Photo by Uriel Sinai/Getty Images)

  • Israeli Troops Continue To Gather On Border As UN Call For Truce

    ISRAEL/GAZA BORDER, ISRAEL- NOVEMBER 19: An Israeli soldier on route to the border with Gaza gestures a victory sign on November 19, 2012 on Israel's border with the Gaza Strip. The death toll has risen to at least 85 killed in the air strikes, according to hospital officials, on day six since the launch of operation 'Pillar of Defence.' (Photo by Christopher Furlong/Getty Images)

  • Israeli Troops Continue To Gather On Border As UN Call For Truce

    ISRAEL/GAZA BORDER, ISRAEL- NOVEMBER 19: Israeli soldiers prepare an artillery emplacement overlooking Gaza on November 19, 2012 on Israel's border with the Gaza Strip. The death toll has risen to at least 85 killed in the air strikes, according to hospital officials, on day six since the launch of operation 'Pillar of Defence.' (Photo by Christopher Furlong/Getty Images)

  • Israeli Troops Continue To Gather On Border As UN Call For Truce

    ISRAEL/GAZA BORDER, ISRAEL- NOVEMBER 19: Israeli soldiers prepare an artillery emplacement overlooking Gaza on November 19, 2012 on Israel's border with the Gaza Strip. The death toll has risen to at least 85 killed in the air strikes, according to hospital officials, on day six since the launch of operation 'Pillar of Defence.' (Photo by Christopher Furlong/Getty Images)

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    Supporters of Pakistani cricketer turned politician Imran Khan of Pakistan Tehreek-i-Insaaf (PTI - Movement for Justice) carry placards during an anti-Israel protest in Islamabad on November 19, 2012. Israeli air strikes killed 13 Palestinians on November 19, hiking the Gaza death toll to 91 as global efforts to broker a truce to end the worst violence in four years gathered pace. AFP PHOTO/Aamir QURESHI (Photo credit should read AAMIR QURESHI/AFP/Getty Images)

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    Israeli soldiers look on a as Palestinian students from the Birzeit University clash with Israeli soldiers at the Atara checkpoint close to the university as they protest against Israel's military action on the Gaza Strip, on November 19, 2012. Israeli air strikes across the Gaza Strip killed 13 people, raising the Palestinian death toll to 90 as Israel's relentless air campaign entered its sixth day. AFP PHOTO / ABBAS MOMANI (Photo credit should read ABBAS MOMANI/AFP/Getty Images)

  • Israeli Troops Continue To Gather On Border As UN Call For Truce

    ISRAEL/GAZA BORDER, ISRAEL - NOVEMBER 19: A man sits on a discarded armchair on a hill overlooking Gaza as Israeli forces continue to bombard Gaza on November 19, 2012 on Israel's border with the Gaza Strip. The death toll has risen to at least 85 killed in the air strikes, according to hospital officials, on day six since the launch of operation 'Pillar of Defence.' (Photo by Christopher Furlong/Getty Images)

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    Pakistani activists of Islami Jamiat-e-Tulaba (IJT), a student wing of fundamentalist party Jamaat-i-Islami (JI), shout anti-Israel slogans during a protest in Karachi on November 19, 2012. Israeli air strikes killed 13 Palestinians on November 19, hiking the Gaza death toll to 91 as global efforts to broker a truce to end the worst violence in four years gathered pace. AFP PHOTO/Rizwan TABASSUM (Photo credit should read RIZWAN TABASSUM/AFP/Getty Images)

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    A dog hides in his kennel as a Birzeit University Palestinian student holding rocks looks towards clashes with Israeli soldiers at the Atara checkpoint close to the university as they protest against Israel's military action on the Gaza Strip, on November 19, 2012. Israeli air strikes across the Gaza Strip killed 13 people, raising the Palestinian death toll to 90 as Israel's relentless air campaign entered its sixth day. AFP PHOTO / ABBAS MOMANI (Photo credit should read ABBAS MOMANI/AFP/Getty Images)

  • Israeli Troops Continue To Gather On Border As UN Call For Truce

    ISRAEL/GAZA BORDER, ISRAEL - NOVEMBER 19: A plume of smoke rises above Gaza City after an Israeli airstrike on November 19, 2012 on Israel's border with the Gaza Strip. The death toll has risen to at least 85 killed in the air strikes, according to hospital officials, on day six since the launch of operation 'Pillar of Defence.' (Photo by Christopher Furlong/Getty Images)

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    Birzeit University students takes cover behind the university's sign during clashes with Israeli soldiers at the Atara checkpoint close to the university as they protest against Israel's military action on the Gaza Strip, on November 19, 2012. Israeli air strikes across the Gaza Strip killed 13 people, raising the Palestinian death toll to 90 as Israel's relentless air campaign entered its sixth day. AFP PHOTO / ABBAS MOMANI (Photo credit should read ABBAS MOMANI/AFP/Getty Images)

  • PAKISTAN-ISRAEL-PALESTINIANS-PROTEST

    Pakistani activists of Islami Jamiat-e-Tulaba (IJT), a student wing of fundamentalist party Jamaat-i-Islami (JI), shout anti-Israel slogans during a protest in Karachi on November 19, 2012. Israeli air strikes killed 13 Palestinians on November 19, hiking the Gaza death toll to 91 as global efforts to broker a truce to end the worst violence in four years gathered pace. AFP PHOTO/Rizwan TABASSUM (Photo credit should read RIZWAN TABASSUM/AFP/Getty Images)