At least 22 Egyptians have been killed in the city of Port Said on Saturday. Riots were sparked after a judge handed down death sentences to 21 football fans on trial over a horrific stadium riot that left scores dead in the city last year.

Following Saturday's sentences, supporters and families of the accused stormed police stations and the prison holding the 21 men, while the families of those killed amongst February riot celebrated the verdict on the streets and at home.

According to Egyptian security officials, most of those killed were involved in assaults on the governor's office, courthouse and prison in the port following the end of the trial.

The violence came the day after significant protests against the country's president, Mohammad Morsi, on the second anniversary of the overthrowing of dictator Hosni Mubarak.

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Fans of the Cairo club celebrate the verdict on Saturday

Violence erupted after two police officers were shot at the Port Said prison, with rioting on the streets leading to the death of at least a further 20 Egyptians, with 200 more injured. The Egyptian army has been deployed to try to take control of the situation.

In February last year, the match between bitter rivals al-Ahly and al-Masry witnessed crowds invading the pitch as the game descended into a chaos. Thousands headed to the exits, resulting in the death of 74 people in the subsequent stampedes.

A total of 73 people, including nine police officers, have been charged over the day's events. Fifty-two have yet to be sentenced.

Sobhi Abdel-Maguiat, the judge who condemned the 21 men to be hanged, is set to announce the remaining sentences on March 9.

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Families of the accused say the sentences are too severe

Supporters of the accused claim there is no basis for the convictions, while one defendant's lawyer claims the harsh sentences are nothing but "a political decision to calm the public".

Supporters of both clubs involved in the riots believe that former members of ex-dictator Hosni Mubarak's regime instigated the violence in Port Said immediately after the match, claiming the police were responsible for gross negligence in their handling of fans.

On Friday, five people were reportedly shot dead in the Egyptian city of Suez on Friday during nationwide protests on the second anniversary of the overthrow of Hosni Mubarak.

In the capital, police dispersed protestors with tear gas as they attempted to penetrate barbed-wire fences around the presidential palace, while government offices were attacked with petrol bombs near Tahrir Square - the place of iconic protests during the uprising of 2011.

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Families of those killed at the football riots last February celebrate in court

Morsi, who was democratically elected president of Egypt in June, has been heavily criticised by the nation for his inability to revive the Egyptian economy - the Egyptian pound is at a record low against the dollar - and his attempt to enforce a new Islam-focussed constitution on the country.

According to Reuters, a further 280 civilians and 55 security officials were injured as Egyptians took to the streets to demonstrate against the Islamic Brotherhood-backed government of Mohamed Morsi.

The deaths capped a day of violence in the country, with multiple reports of clashes between police and protestors in Cairo, Alexandria and Port Said.

In the capital, police dispersed protestors with tear gas as they attempted to penetrate barbed-wire fences around the presidential palace, while government offices were attacked with petrol bombs near Tahrir Square - the place of iconic protests during the uprising of 2011.

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  • In this Monday, Jan. 28, 2013 photo, Egyptian protesters celebrate the capture of a state security armored vehicle that demonstrators commandeered during clashes with security forces and brought to nearby Tahrir Square in Cairo, Egypt. On Tuesday, Jan. 29, 2013. Egypt's army chief warns of "the collapse of the state" if political crisis continues. (AP Photo/Mohsen Bayoumy)

  • In this Monday, Jan. 28, 2013 photo, an Egyptian protester takes a break while others use green laser pointers during clashes between protesters and Egyptian security forces in Downtown Cairo, Egypt. (AP Photo/Virginie Nguyen Hoang)

  • Egyptian protesters celebrate the capture of a state security armored vehicle that demonstrators commandeered during clashes with security forces and brought to Tahrir Square in Cairo, Egypt, Tuesday, Jan. 29, 2013. (AP Photo/Amr Nabil)

  • An Egyptian protester displays used ordinance as others, not pictured, celebrate the capture of a state security armored vehicle that demonstrators commandeered during clashes with security forces and brought to Tahrir Square in Cairo, Egypt, Tuesday, Jan. 29, 2013. (AP Photo/Amr Nabil)

  • In this Monday, Jan. 28, 2013 photo, Egyptian protesters use camera phones to capture a burning state security armored vehicle that demonstrators commandeered during clashes with security forces nearby and brought to Tahrir Square and set it alight, in Cairo, Egypt. (AP Photo/Mostafa El Shemy)

  • An Egyptian boy shows birdshot wounds on his body according to him, in Tahrir Square, Cairo, Egypt, Tuesday, Jan. 29, 2013. (AP Photo/Amr Nabil)

  • Protesters wave an Egyptian national flag as they celebrate the capture of a state security armored vehicle that demonstrators commandeered during clashes with security forces and brought to Tahrir Square in Cairo, Egypt, Tuesday, Jan. 29, 2013. (AP Photo/Amr Nabil)

  • Egyptian boys cover their mouths during clashes with security forces, not pictured, near Tahrir Square in Cairo, Egypt, Tuesday, Jan. 29, 2013. (AP Photo/Amr Nabil)

  • In this Monday, Jan. 28, 2013 photo, Egyptian protesters use camera phones to capture a burning state security armored vehicle that demonstrators commandeered during clashes with security forces nearby and brought to Tahrir Square and set it alight, in Cairo, Egypt. (AP Photo/Mostafa El Shemy)

  • A masked Egyptian protester flashes the victory sign during clashes with riot police, background, near Tahrir Square, Cairo, Egypt, Monday, Jan. 28, 2013. (AP Photo/Khalil Hamra)

  • Egyptian protesters run for cover during clashes with riot police near Tahrir Square, Cairo, Egypt, Monday, Jan. 28, 2013. (AP Photo/Khalil Hamra)

  • An Egyptian protester covers his face during clashes with riot police, not seen, near Tahrir Square, Cairo, Egypt, Monday, Jan. 28, 2013. (AP Photo/Khalil Hamra)

  • A protester hold the Egyptian national flag during clashes with riot police near Tahrir Square, Cairo, Egypt, Monday, Jan. 28, 2013. (AP Photo/Khalil Hamra)

  • Former Egyptian presidential candidate, Hamdeen Sabahi, left, speaks during a press conference following the meeting of the National Salvation Front as former director of the U.N.'s nuclear agency and Nobel peace laureate, Mohamed El Baradei, center, and former Egyptian Foreign Minister and presidential candidate, Amr Moussa, right, listen in Cairo, Egypt, Monday, Jan. 28, 2013. (AP Photo/Amr Nabil)

  • Egyptians attend the funeral of several Sunday victims of ongoing violence in Port Said, Egypt, Monday, Jan. 28, 2013. (AP Photo)

  • Egyptian protesters clash with riot police, unseen, near Tahrir Square, Cairo, Egypt, Monday, Jan. 28, 2013. (AP Photo/Khalil Hamra)

  • A protester hold the Egyptian national flag during clashes with riot police near Tahrir Square, Cairo, Egypt, Monday, Jan. 28, 2013. (AP Photo/Khalil Hamra)

  • Egyptian protesters clash with riot police near Tahrir Square, Cairo, Egypt, Monday, Jan. 28, 2013. Health and security officials say a protester has been killed in clashes between rock-throwing demonstrators and police near Tahrir Square in central Cairo. (AP Photo/Khalil Hamra)

  • An Egyptian protester covers his face with a plastic bag during clashes with riot police, not seen, near Tahrir Square, Cairo, Egypt, Monday, Jan. 28, 2013. (AP Photo/Khalil Hamra)

  • In this Sunday, Jan. 27, 2013 photo, a protester prepares to throw a rock while surrounded by tear gas and smoke during clashes with security forces near Tahrir Square in Cairo, Egypt. (AP/Virginie Nguyen Hoang

  • An Egyptian boy throws stones during clashes between protesters and riot police near Tahrir Square, Cairo, Egypt, Sunday, Jan. 27, 2013. (AP Photo/Khalil Hamra)

  • Egyptian protesters clash with riot police, not seen, near Tahrir Square, Cairo, Egypt, Sunday, Jan. 27, 2013. (AP Photo/Khalil Hamra)

  • An Egyptian protester makes the sign of the victory during protests near Cairo's Tahrir Square on January 27, 2013. (MOHAMMED ABED/AFP/Getty Images)

  • Egyptian protesters throw stones at riot police, not seen, during clashes near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • An Egyptian protester shouts anti--President Mohammed Morsi slogans in front of the presidential palace in Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Amr Nabil)

  • A woman carries a sign with a photo of Egyptian President Mohammed Morsi and Arabic that reads, "jinx, terrorist killer, embarrassment to Islam. hypocritical liar," during a march near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Nariman El-Mofty)

  • Egyptian protesters hang a giant banner in the colors of Egypt's national flag on barbed wires in front of anti-riot soldiers at the entrance to the presidential palace in Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Amr Nabil)

  • Egyptian presidential guards soldiers sit on their armored vehicle in front of the presidential palace in Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Amr Nabil)

  • A protester wears a Guy Fawkes mask as he displays a derogatory poster showing President Mohammed Morsi in front of Egyptian anti-riot soldiers at the entrance to the presidential palace in Cairo, Egypt, Friday, Jan.25, 2013. (AP Photo/Amr Nabil)

  • Egyptian protesters hang a giant banner in the colors of Egypt's national flag on barbed wires in front of anti-riot soldiers at the entrance to the presidential palace in Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Amr Nabil)

  • Egyptian protesters throw stones at riot police, not seen, and use scrap metal to deflect stones being returned by security forces during clashes near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • An Egyptian protester shouts ant-President Morsi slogans as anti-riot forces block the entrance to the presidential palace in Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Amr Nabil)

  • Anti-government protesters demonstrate during a march near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Nariman El-Mofty)

  • Egyptian protesters evacuate an injured man during clashes near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • Egyptian protesters throw stones at riot police, not seen, and use scrap metal to deflect stones being returned by security forces during clashes near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • Egyptian protesters evacuate an injured man during clashes near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • Egyptian protesters throw stones at riot police, not seen, during clashes near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • Egyptian protesters throw stones at riot police, not seen, during clashes near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • Egyptian riot police are seen through a crack in a security barrier throwing stones at protesters during clashes near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • An Egyptian riot police officer wearing a gas mask looks through a crack in a security barrier during clashes near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • An Egyptian man takes cover during clashes with security forces near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • Skirmishes break out between protesters and security forces, unseen, near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • Egyptian protesters run for cover from tear gas fired by security forces during clashes near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • Egyptian protesters gather as skirmishes break out between demonstrators and security forces, unseen, near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Thomas Hartwell)

  • Skirmishes break out between protesters and security forces, unseen, near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • An Egyptian displays the national flag as skirmishes break out between protesters and security forces, unseen, near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • Skirmishes break out between protesters and security forces, unseen, near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • Skirmishes break out between protesters and security forces, unseen, near Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Khalil Hamra)

  • Egyptian walk past revolutionary graffiti in Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. (AP Photo/Thomas Hartwell)