A man has been arrested in Co Cavan this morning as part of the investigation into an attack on the police in Co Fermanagh in which Semtex was used.
Two officers were on patrol on Main Street, Lisnaskea, Co Fermanagh while a third was in a nearby police vehicle when a man stepped from a white Ford Escort and aimed an improvised rocket launcher at the officers on Saturday.
They suffered shock and minor injuries when the device failed to detonate.
Early this morning searches were carried out on both sides of the border as part of the investigation into the attack on the officers.
Gardaí carried out a search in the Blacklion area of Cavan and the Police Service of Northern Ireland (PSNI) conducted a search in the Belcoo area of Fermanagh.
A man in his early 30's was arrested under Section 30 of the Offences Against the State Act.
He is being held at Manorhamilton Garda Station.