The Taoiseach has said he is disappointed that an inquiry has not been established by the British government into the murder of Belfast solicitor Pat Finucane.
The matter was discussed during questioning of Enda Kenny in the Dáil.
Mr Kenny said he had raised the Government's position on the matter at 10 Downing Street during his visit to the UK in March.
Earlier, he described the position of the British government as a "cause of regret".
Mr Finucane was shot by gunmen from the UDA in 1989.
The Taoiseach also said he hoped to visit Belfast in June and would be happy to meet the families of those murdered in the Ballymurphy massacre.
He told Sinn Féin leader Gerry Adams that it was his personal preference to meet the families in Northern Ireland, rather than have them travel to Dublin.
The families are looking for an investigation, which the British government has declined to order.