An army bomb disposal unit was called to the house of family who were victims of a gun attack in the French alps on Monday morning amid "concerns" over items found at the address.

The disposal experts arrived at around 10.30am and the search appeared to focus on a shed or workshop at the bottom of the garden.

Neighbours living close to the property in the affluent village of Claygate, Surrey were evacuated from their homes.

However at midday, the bomb disposal unit left the area and the wider police cordon was lifted. Firearms officers remain at the scene.

bomb disposal

There were concerns over objects found at the address after police searched the family home for clues

In France, AFP reported that only one gun was used in the attack during which 25 shots were fired. The calibre was not disclosed.

bomb 2

There has been speculation that the family were the subject of a professional hit

Attention on the property has intensified as police in Annecy in France waited to question seven-year-old Zainab al-Hilli, who has regained consciousness following the attack that left her parents dead.

saad alhilli

Iraqi born Saad al-Hilli was killed in the car alongside his wife and mother-in-law

Her father Saad al-Hilli, 50, was murdered in his car alongside his dentist wife, Iqbal, on Wednesday while the family holidayed in the picturesque region.

french campsite

The campsite where the family was holidaying before the tragedy

Mrs al-Hilli's mother also died in the shooting along with Sylvain Mollier, 45, a French cyclist who apparently stumbled across the attack.

Zainab's younger sister Zeena, four, who survived after she hid behind her mother, flew back to Britain with carers on Sunday.

Police plan to look at aspects of Mr al-Hilli's life to try to find a motive for the murders and also speak with his brother, Zaid Hilli.

Mr al-Hilli's brother has approached UK police to deny any feud with his sibling over an inheritance.

flowers at tge house

Police have been forced to cordon off the road around the house and residents have been asked to leave neighbouring properties

Police have yet to speak to Zainab, who was shot and beaten during the ordeal and is seen as a key witness.

She remains under sedation after coming out of a medically-induced coma.

Public prosecutor Eric Maillaud said the child will be interviewed as soon as doctors allow it.

British police are now working alongside their French counterparts to unravel the mystery surrounding the four deaths.

It is believed detectives are looking into Mr al-Hilli's professional life for possible clues. He worked as a contractor for a satellite technology company in Surrey.

Witnesses have said they saw a green four-wheel-drive vehicle in the area at the time of the killings, and possibly a motorbike.

Investigators found 25 spent bullet cartridges at the scene - a car park in the Combe d'Ire forest near Chevaline - while two mobile phones found in the al-Hilli's bullet-ridden BMW are being analysed by police.

Each of the four victims of the atrocity was shot twice in the head.

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One theory is that shots could have been fired during a bungled armed robbery, with Mr Mollier being a witness to the crime.
But speculation about other possible motives, including a pre-planned attack by professional hitmen, remained rife.

Some media reports have suggested that Mr al-Hilli, an engineer who left Saddam Hussein's Iraq several years ago, was known to the security services and was put under surveillance by Metropolitan Police Special Branch during the second Gulf war.

A Scotland Yard spokesman said they could not comment. But it is understood there is no link between the deaths and any national security issues.

Mr Maillaud revealed the family had visited France a number of times before and it was not the first time they had been to Le Solitaire du Lac, a campsite in Saint-Jorioz they were staying at when the attack happened.

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  • Police around the BMW at scene of shooting in woods near Chevaline in the French Alps where british family and cyclist were shot dead

  • Police around the BMW at scene of shooting in woods near Chevaline in the French Alps where british family and cyclist were shot dead

  • French gendarmes talk with investigators near the caravan of the British family hit by gun attack on September 6, 2012 in the camping "Le Solitaire du lac" in the French Alpine village of Saint-Jorioz. A four-year-old girl spent hours curled up under her mother's body and miraculously survived the deadly attack that left her father, mother and grandmother dead and her elder sister seriously injured, officials said. (Photo credit: PHILIPPE DESMAZES/AFP/GettyImages)

  • A French gendarme stands guard near the caravan of the British family hit by gun attack on September 6, 2012 in the camping "Le Solitaire du lac" in the French Alpine village of Saint-Jorioz. A four-year-old girl miraculously survived the deadly attack that left her father, mother and grandmother dead and her elder sister seriously injured, officials said. (Photo credit: PHILIPPE DESMAZES/AFP/GettyImages)

  • A vehicle of rescuers arrives on Septembre 6, 2012, where four people were shot dead in or close to a British-registered car that was found in a forest car park on the edge of the French Alpine village of Chevaline. The car, a BMW, contained the bodies of a man, in the front, and two women who were seated in the back, police said. (Photo credit: JEAN-PIERRE CLATOT/AFP/GettyImages)

  • A road sign is seen while a Gendarme blocks access to a killing site near Chevaline, French Alps, Wednesday Sept. 5, 2012. French authorities say at least four people have been shot to death in a forest in the Alps. An official with the regional administration for the Haute-Savoie region says three of the bodies were found in a BMW registered in Britain. (AP Photo/Alexis Moro)

  • Gendarmes block access to a killing site near Chevaline, French Alps, Wednesday Sept. 5, 2012. French authorities say at least four people have been shot to death in a forest in the Alps. An official with the regional administration for the Haute-Savoie region says three of the bodies were found in a BMW registered in Britain. (AP Photo/Alexis Moro)

  • Gendarmes block access to a killing site near Chevaline, French Alps, Wednesday Sept. 5, 2012. French authorities say at least four people have been shot to death in a forest in the Alps.An official with the regional administration for the Haute-Savoie region says three of the bodies were found in a BMW registered in Britain. (AP Photo/Alexis Moro)

  • Gendarmes block access to a killing site near Chevaline, French Alps, Wednesday Sept. 5, 2012. French authorities say at least four people have been shot to death in a forest in the Alps.An official with the regional administration for the Haute-Savoie region says three of the bodies were found in a BMW registered in Britain. (AP Photo/Alexis Moro)

  • Gendarmes block access to a killing site near Chevaline, French Alps, Wednesday Sept. 5, 2012. French authorities say at least four people have been shot to death in a forest in the Alps.An official with the regional administration for the Haute-Savoie region says three of the bodies were found in a BMW registered in Britain. (AP Photo/Alexis Moro)

  • Gendarmes block access to a killing site near Chevaline, French Alps, Wednesday, Sept. 5, 2012. French authorities say at least four people have been shot to death in a forest in the Alps. An official with the regional administration for the Haute-Savoie region says three of the bodies were found in a BMW registered in Britain. (AP Photo / Alexis Moro)

  • Gendarmes block access to a killing site near Chevaline, French Alps, Wednesday, Sept. 5, 2012. French authorities say at least four people have been shot to death in a forest in the Alps. An official with the regional administration for the Haute-Savoie region says three of the bodies were found in a BMW registered in Britain. (AP Photo / Alexis Moro)

  • A Gendarme's car heads to a killing site near Chevaline, French Alps, Wednesday Sept.5, 2012. French authorities say at least four people have been shot to death in a forest in the Alps. An official with the regional administration for the Haute-Savoie region says three of the bodies were found in a BMW registered in Britain. (AP Photo/Alexis Moro)

  • Alps shooting

    Members of the public arrive with flowers at the home of French shooting victim, Saad al-Hilli in Claygate, Surrey, as French police investigating the murder of four people are sending four officers to the UK to work with British detectives and plan to search the house of victim Saad al-Hilli.

  • Alps shooting

    A police officer accepts flowers outside the home of French shooting victim, Saad al-Hilli in Claygate, Surrey, as French police investigating the murder of four people are sending four officers to the UK to work with British detectives and plan to search the house of victim Saad al-Hilli.

  • Alps shooting

    A police officer lays flowers outside the home of French shooting victim, Saad al-Hilli in Claygate, Surrey, as French police investigating the murder of four people are sending four officers to the UK to work with British detectives and plan to search the house of victim Saad al-Hilli.

  • Alps shooting

    British Scenes of Crime Officers (SOCO) outside the home of French shooting victim, Saad al-Hilli in Claygate, Surrey, as French police investigating the murder of four people are sending four officers to the UK to work with British detectives and plan to search the house of victim Saad al-Hilli.

  • Alps shooting

    A British Scenes of Crime Officer (SOCO) outside the home of French shooting victim, Saad al-Hilli in Claygate, Surrey, as French police investigating the murder of four people are sending four officers to the UK to work with British detectives and plan to search the house of victim Saad al-Hilli.

  • Alps shooting

    A British Scenes of Crime Officer (SOCO) outside the home of French shooting victim, Saad al-Hilli in Claygate, Surrey, as French police investigating the murder of four people are sending four officers to the UK to work with British detectives and plan to search the house of victim Saad al-Hilli.

  • Alps shooting

    British Scenes of Crime Officers (SOCO) outside the home of French shooting victim, Saad al-Hilli in Claygate, Surrey, as French police investigating the murder of four people are sending four officers to the UK to work with British detectives and plan to search the house of victim Saad al-Hilli.

  • Alps shooting

    British Scenes of Crime Officers (SOCO) outside the home of French shooting victim, Saad al-Hilli in Claygate, Surrey, as French police investigating the murder of four people are sending four officers to the UK to work with British detectives and plan to search the house of victim Saad al-Hilli.

  • Alps shooting

    Forensic officers outside the home of French shooting victim, Saad al-Hilli in Claygate, Surrey, as French police investigating the murder of four people are sending four officers to the UK to work with British detectives and plan to search the house of victim Saad al-Hilli.

  • Alps shooting

    Forensic officers outside the home of French shooting victim, Saad al-Hilli in Claygate, Surrey, as French police investigating the murder of four people are sending four officers to the UK to work with British detectives and plan to search the house of victim Saad al-Hilli.

  • Alps shooting

    British police forensic officers Saturday Sept. 8, 2012, outside the home of Saad al-Hilli, in Claygate, Britain, during investigations into the death of four people shot dead on Wednesday in the French Alps. French police officers are expected to arrive Saturday in Britain as part of an investigation into the slayings of the British-Iraqi al-Hilli family members while vacationing in France. The children of the al-Hilli family survived the killing, as 4-year-old daughter Zeena stayed hidden below the body of her dead mother, and 7-year-old Zaina who was shot in the shoulder and beaten. (AP Photo / Steve Parsons, PA) UNITED KINGDOM OUT - NO SALES - NO ARCHIVES

  • Alps shooting

    British Scenes of Crime forensic officers (SOCO) Saturday Sept. 8, 2012, outside the home of Saad al-Hilli, in Claygate, Britain, during investigations into the death of four people shot dead on Wednesday in the French Alps. French police officers are expected to arrive Saturday in Britain as part of an investigation into the slayings of the British-Iraqi al-Hilli family members while vacationing in France. The children of the al-Hilli family survived the killing, as 4-year-old daughter Zeena stayed hidden below the body of her dead mother, and 7-year-old Zaina who was shot in the shoulder and beaten. (AP Photo / Steve Parsons, PA) UNITED KINGDOM OUT - NO SALES - NO ARCHIVES

  • Alps shooting

    British police officers places flower tributes Saturday Sept. 8, 2012, outside the home of Saad al-Hilli, in Claygate, Britain, during investigations into the death of four people shot dead on Wednesday in the French Alps. French police officers are expected to arrive Saturday in Britain as part of an investigation into the slayings of the British-Iraqi al-Hilli family members while vacationing in France. The children of the al-Hilli family survived the killing, as 4-year-old daughter Zeena stayed hidden below the body of her dead mother, and 7-year-old Zaina who was shot in the shoulder and beaten. (AP Photo / Steve Parsons, PA) UNITED KINGDOM OUT - NO SALES - NO ARCHIVES

  • Alps shooting

    British police forensic officers Saturday Sept. 8, 2012, outside the home of Saad al-Hilli, in Claygate, Britain, during investigations following the deaths of four people shot dead on Wednesday in the French Alps. French police officers are expected to arrive Saturday in Britain as part of an investigation into the slayings of the British-Iraqi al-Hilli family members while vacationing in France. The children of the al-Hilli family survived the killing, as 4-year-old daughter Zeena stayed hidden below the body of her dead mother, and 7-year-old Zaina who was shot in the shoulder and beaten. (AP Photo / Steve Parsons, PA) UNITED KINGDOM OUT - NO SALES - NO ARCHIVES

  • Alps shooting

    The home of Saad al-Hilli, in Claygate, Britain, who was shot dead on Wednesday with three others while vacationing in the French Alps, as it is secured by British police Saturday Sept. 8, 2012. French police officers are expected to arrive Saturday in Britain as part of an investigation into the slayings of the British-Iraqi al-Hilli family. The children of the al-Hilli family survived the killing, as 4-year-old daughter Zeena stayed hidden below the body of her dead mother, and 7-year-old Zaina who was shot in the shoulder and beaten. (AP Photo / Steve Parsons, PA) UNITED KINGDOM OUT - NO SALES - NO ARCHIVES

  • Alps shooting

    British police secure the area Saturday Sept. 8, 2012, outside the home of Saad al-Hilli, in Claygate, Britain, who was shot dead on Wednesday with three others while vacationing in the French Alps. French police officers are expected to arrive Saturday in Britain as part of an investigation into the slayings of the British-Iraqi al-Hilli family. The children of the al-Hilli family survived the killing, as 4-year-old daughter Zeena stayed hidden below the body of her dead mother, and 7-year-old Zaina who was shot in the shoulder and beaten. (AP Photo / Steve Parsons, PA) UNITED KINGDOM OUT - NO SALES - NO ARCHIVES

  • Alps shooting

    The home of French shooting victim, Saad al-Hilli in Claygate, Surrey, as French police investigating the murder of four people are sending four officers to the UK to work with British detectives and plan to search the house of victim Saad al-Hilli.

  • Alps shooting

    Police outside the home of French shooting victim, Saad al-Hilli in Claygate, Surrey, as French police investigating the murder of four people are sending four officers to the UK to work with British detectives and plan to search the house of victim Saad al-Hilli.

  • Alps shooting

    Police on Thursday Sept. 6, 2012 stand outside the home of Saad al-Hilli in Claygate, Surrey, who has been named by French media as one of the members of a British family who was shot dead by a gunman in the French Alps. (AP Photo/Steve Parsons/PA) UNITED KINGDOM OUT NO SALES NO ARCHIVE

  • General view of the hospital of Grenoble , France, Thursday, Sept. 6, 2012, where the young British girl is hospitalized after four people were found shot to death on a forest road, last Wednesday, in the French alps. Immobilized with fear, a 4-year-old British girl huddled for eight hours beneath the legs of her slain mother in the back of a car filled with corpses on a remote Alpine road — all while French investigators stood nearby, unaware the girl was there. The stunning discovery Thursday of the girl, apparently unharmed, heightened the drama around a mysterious shooting rampage that left four adults dead and a 7-year-old girl hospitalized with bullet wounds and skull fractures. The reason for the killing, in a wooded area near the village of Chevaline, remains unclear. (AP Photo/Lionel Cironneau)

  • General view of the hospital of Grenoble , France, Thursday, Sept. 6, 2012, where the young british girl is hospitalized after four people were found shot to death on a forest road, on Wednesday, in the French alps. Immobilized with fear, a 4-year-old British girl huddled for eight hours beneath the legs of her slain mother in the back of a car filled with corpses on a remote Alpine road — all while French investigators stood nearby, unaware the girl was there. The stunning discovery Thursday of the girl, apparently unharmed, heightened the drama around a mysterious shooting rampage that left four adults dead and a 7-year-old girl hospitalized with bullet wounds and skull fractures. The reason for the killing, in a wooded area near the village of Chevaline, remains unclear. (AP Photo/Lionel Cironneau)

  • Alps shooting

    A Royal Logistic Corps bomb disposal truck arrives at the cordon close to the home of Saad al-Hilli in Claygate, Surrey, as police evacuated an area around his home due to "concerns" about items found at the address.

  • Alps shooting

    A Royal Logistic Corps bomb disposal truck arrives at the cordon close to the home of Saad al-Hilli in Claygate, Surrey, as police evacuated an area around his home due to "concerns" about items found at the address.

  • Alps shooting

    Police close to the home of Saad al-Hilli in Claygate, Surrey, as they evacuated an area around his home due to "concerns" about items found at the address.

  • Alps shooting

    Police stand outside the home of Saad al-Hilli in Claygate, Surrey, who has been named by French media as one of the members of a British family who was shot dead by a gunman in the French Alps.

  • Alps shooting

    Police walk close to the home of Saad al-Hilli in Claygate, Surrey, as they evacuated an area around his home due to "concerns" about items found at the address.

  • Alps shooting

    Police close to the home of Saad al-Hilli in Claygate, Surrey, as they evacuated an area around his home due to "concerns" about items found at the address.

  • Alps shooting

    Police search teams leave the home of French shooting victim, Saad al-Hilli in Claygate, Surrey, after police resumed their search at the home of the family gunned down in the French Alps.

  • Alps shooting

    A police firearms officer at the home of French shooting victim, Saad al-Hilli in Claygate, Surrey, as police resumed their search at the home of the family gunned down in the French Alps.

  • Alps shooting

    Police firearms officers at the home of French shooting victim, Saad al-Hilli in Claygate, Surrey, as police resumed their search at the home of the family gunned down in the French Alps.

  • Alps shooting

    Police at the home of French shooting victim, Saad al-Hilli in Claygate, Surrey, as police resumed their search at the home of the family gunned down in the French Alps.

  • Saad al-Hilli killed in the French Alps