Four men are in custody after a quantity of ammunition was seized during a search in Co Cork yesterday evening.
The men, a teenager, two men in their 30s and another in his 20s, were arrested when their car was searched near Youghal shortly before 5pm.
The men are being questioned at Fermoy, Youghal, and Middleton Garda stations.
They are being detained under the provisions of section 30 Offences Against the State Act 1939.