A former IRA prisoner, who was released under the Good Friday agreement, is being questioned in connection with the hijacking of a truck in Co Meath.
A total of three men were arrested in Co Westmeath in connection with the incident and it is understood at least two of the men are former members of the IRA.
One of the men was serving a six-year sentence for possession of explosives at the time of his release in 1998.
The truck, which was carrying €300,000 worth of vodka, was hijacked on the Dublin side of Dunshaughlin.
It was later discovered by gardaí near Delvin in Co Westmeath, and the driver of the truck was found to be uninjured.
The Minister for Justice, Michael McDowell, said he is very concerned about the incident and is monitoring the situation.
