Relatives of people who were killed in the Dublin-Monaghan bombings have laid wreaths at Talbot Street in Dublin to mark the 30th anniversary of the attack.
It was the scene of one of three car bombs to explode in Dublin's rush hour. A fourth bomb exploded just over an hour later in Monaghan town. Thirty-four people were killed in the atrocity including a pregnant woman.
Taoiseach Bertie Ahern joined the relatives for the wreath laying. Earlier, he said the blasts left a legacy of pain and sorrow.
The Justice For The Forgotten group welcomed Mr Ahern but urged him to put pressure on the British government to help find out who was responsible for the bombs - the single greatest atrocity during the Troubles.
Chairwoman Bernie McNally, repeated calls for a public inquiry.
Last evening, President Mary McAleese unveiled a monument in Monaghan town to the victims.
The attacks were claimed by the paramilitary group, the UVF, however, the perpetrators have never been brought to justice.
The Barron Report published last December found no evidence of collusion between members of the security forces in the North and the loyalist bombers.
However, it was strongly critical of the garda investigation and an apparent lack of concern by the then Government in relation to the matter.
An inquest into the deaths re-opened earlier this year and is due to conclude this week.