Detectives were continuing to question two men today over the discovery of a suspected major dissident republican bomb-making operation in the Republic.
The pair were arrested and parts of a potentially significant explosive device seized in Saturday night's raid by gardai in Dundalk, Co Louth.
Justice Minister Dermot Ahern said lives were saved by the swoop.
It is thought the raid on the Old Newry Road in the town's Mount Pleasant area could have thwarted an upcoming attack in Northern Ireland.
The suspects, aged 23 and 52, were taken to Drogheda Garda station for questioning, where they can be held for up to three firstname.lastname@example.org