Sinn Féin MLA Raymond McCartney has called on the British government to release all files on the Dublin and Monaghan bombings, which killed 34 people in 1974.
Speaking on the 40th anniversary of the bombings, the Sinn Féin justice spokesperson said the families of those killed are entitled to justice.
"34 people were killed in these bombings and many more injured and their relatives have been tirelessly campaigning for truth and justice for 40 years,” said Raymond McCartney.
"The hurt felt by the loss of their loved ones has been made worse by four decades of cover up and silence from the British government.
"Successive British governments have refused to disclose papers relating to the role of its agents in this attack and the subsequent cover up.
"The families of the those killed in the bombings have been forced to take a civil case as a last resort because of the refusal of the British government to fully disclose all papers relating to the bombings and we support the families in that.
"The British government were a party to the conflict and cannot be allowed to shirk its responsibility in dealing with the past.
"As well as failing the families of those killed in Dublin and Monaghan, the British government is failing many other victims by its refusal to sign up to the Haass proposals on dealing with the past.
"The Irish government too has a duty to challenge the British government to disclose the information so the families can get to the truth of what happened that day in Dublin and Monaghan. Ends/Críoch