The Foreign Affairs Minister has been urged to push the British Government to allow access to state papers linked to the Dublin and Monaghan and Belturbet bombings.
It follows an inquest yesterday which found the victims of the 1971 Ballymurphy massacre were 'entirely innocent' and the deaths were 'without justification'.
No one has been brought to justice for the Monaghan and Belturbet bombings which saw the deaths of nine people in 1974 and 1972.
There are allegations of collusion between British forces and loyalist paramilitaries believed to be behind the attacks.
Foreign Affairs Minister Simon Coveney told the Dáil that there would need to be co-operation to deal with legacy issues and legislation has already been passed to allow Gardaí give evidence in inquests in Northern Ireland.
Local TD Brendan Smith has urged action because families need answers: