The Irish National Liberation Army have announced an end to its 30-year campaign of republican violence.
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The organisation responsible for some of the most infamous attacks of the Troubles used a graveside oration outside Dublin to confirm that its "armed struggle is over".
But there was uncertainty over whether or not the group which killed more than 100 people during the Troubles was prepared to decommission its illegal arsenal of weapons, after the statement read to supporters failed to promise a disposal of arms.
A representative of the Irish Republican Socialist Party Martin McMonagle told the event: "The Republican Socialist Movement has been informed by the INLA that following a process of serious debate, consultation and analysis, it has concluded that the armed struggle is over.
"The objective of a 32 county socialist republic will be best achieved exclusively through political, peaceful means."
He added that the grouping continued to oppose the Good Friday Agreement of 1998 as a platform for achieving Irish unity, but would restrict its opposition to the accord to purely peaceful means.
On the question of decommissioning INLA arms, however, the IRSP spokesman later added that there was no announcement on decommissioning to coincide with the statement.
He said the IRSP believed that INLA violence was at an end, but on the question of decommissioning added: "That would be a matter for the INLA."
Confirmation that the splinter group, responsible for attacks such as the murder of Conservative MP Airey Neave in 1979, is to formally end its campaign comes as US Secretary of State Hillary Clinton said on Sunday violent republicanism has no support among Irish-Americans.
The Secretary of State has left Britain to hold a series of engagements in Dublin, before travelling to Belfast for talks with Stormont political leaders as they broker an historic deal that it is hoped will see republicans and unionists share responsibility for running the region's justice system.
Sinn Fein leader Gerry Adams has spoken following the news.
"I know there will be cynicism given the history of that organisation, perhaps that is understandable but if the actions which are required to follow through on the announcement actually happen then that will be to the good, and it is another step."
© Press Association