GARDAI have arrested eight suspected members of the so-called Dublin brigade of the recently establish New IRA alliance.
The eight were detained as they were holding a terrorist summit in a house in Tallaght in south county Dublin last night.
Heavily armed detectives from the garda's elite anti terrorist unit, the Emergency Response Unit stormed the house at Glenshane Crescent and disrupting the meeting.
Those detained are all well known to the Special Branch and are alleged to be highly active members of the new alliance.
Some of them were former supporters of the slain Real IRA leader Alan Ryan, who was shot dead last September.
At least three of those arrested are from Tallaght, while others are from the north side of the capital.
A number of the suspects are originally from Northern Ireland.
Gardai believe the group were planning a new "fund raising" campaign in Dublin to finance terror activities in the North.
Officers say the alliance has been very active in recent months and has been involved in extortion rackets and intimidation.
Meanwhile, in a separate operation members of the Garda Special Branch arrested a New IRA suspect from Ballymun around teatime yesterday in a field in north county Dublin.
He was arrested after detectives seized a container in the field. It had been filled with component parts for up to ten pipe bombs and explosive powder.
Gardai saidf the suspect was a former associate of Ryan and had since become an active member of the alliance.
The alliance was formed last summer and has since established itself as presenting the biggest terrorist threat on the island.
It was blamed last November for the murder of Northern prison officer David Black.