AMNESTY International has called for a full independent investigation into the fatal shooting by a soldier of a young girl in Northern Ireland during the Troubles.

Majella O’Hare was 12 when she was shot in the back by a member of the Army using a machine gun as she walked to church in August 1976. The Ministry of Defence later apologised for the killing.

Amnesty International UK is supporting Majella’s brother, Michael, in calling for an independent investigation ahead of the 44th anniversary of her death.

Grainne Teggart, Amnesty International’s Northern Ireland campaign manager, said: “This tragic story should be a matter of national shame for the UK. It is utterly appalling that the family have been left without justice for nearly 44 years.

“Majella O’Hare was a young girl of 12 when she was cruelly robbed of her life when she was shot in the back by a soldier with a machine gun.”

A letter has been sent to the Legacy Investigation Branch of the Police Service of Northern Ireland requesting the Chief Constable ensure a prompt and independent investigation.

Majella was on her way to church with a group of friends in the Armagh village of Whitecross. They walked past an army patrol and, when she was about 20 or 30 yards beyond it, shots were fired from a general-purpose machine gun.

Three shells were found on the ground – two of the bullets had hit Majella in the back. Majella was airlifted to hospital alongside her father and a local nurse but she was confirmed dead on arrival.

An investigation by the Royal Military Police which lacked the necessary independence followed. The soldier claimed he fired in response to an IRA sniper attack and was charged with manslaughter in 1977. The judge in the case acquitted him.

Despite a letter of apology from the Ministry of Defence in 2011, no independent investigation has ever taken place and no-one has been held accountable for Majella’s killing.

Michael O’Hare said: “We live with the pain that we will never know the potential of her life.”