A man in his 40s has been arrested and is being detained at Ballyshannon Garda Station under Section 30 of the Offences against the State Act.
As part of an ongoing investigation Gardai carried out a search at a house in Ballyshannon, Co Donegal, on Monday evening last.
During the search a rifle was recovered by gardai and a man was arrested at the scene.
He is currently being detained at Ballyshannon Garda Station for further questioning. Under Section 30 of the Offences against the State Act he can be held for up to 72 hours.
A spokesperson for the Garda Press Office told the Leitrim Observer that enquiries are ongoing and further updates will be issued as more details come to light.