A man in his 30s remains in custody after a firearm was discovered in Shannon, Co Clare. 

Gardaí said they seized a firearm and ammunition on Friday, September 15th, with the help of Emergency Response Unit and Southern Region Dog Unit. 

They discovered a Colt M16 rifle, magazine and over 170 rounds of ammunition. 

A man was arrested under Section 30 of the Offences Against the State Act, 1939, and remains in custody at a Garda station in Co Clare. 

He can be kept in custody for three days. 

Investigations are ongoing, and the firearm and ammunition will be subject to analysis.