Five men have been arrested by gardaí as part of an ongoing investigation into dissident republican activities in Co Louth.

Two of the men were arrested in Dundalk town and three others in Ardee today.

Members of the Emergency Response Unit recovered a firearm and a balaclava after they stopped and searched a car on Ecco Road in Dundalk at 11.25am.

Two men, in their mid 20s and mid 30s, were arrested and are being held at Dundalk Garda Station

Shortly afterwards, a second car was stopped in Ardee and ammunition and a balaclava were discovered. Three men were arrested and are being held in Drogheda and Balbriggan garda stations.