Simon Harris was speaking on the 51th anniversary of the atrocity.

Former Taoiseach Bertie Ahern called on the UK intelligence services to release all information about the 1974 attacks

A ceremony marking is taking place in Dublin to mark the 50th anniversary of the attacks on May 17th, 1974

The bombings, which happened on May 17th 1974, remain the greatest loss of life on any single day of the Troubles.

Friday will mark the 50th anniversary of the bombings which resulted in the greatest loss of life on any single day of the Troubles.

Sharon Askin was just two years old when her father Paddy was killed in the bomb in Monaghan in 1974.