A sub-machine gun, ammunition and a significant quantity of cocaine have been seized in a Garda raid in Dublin.

The discovery was made during the search of an apartment in the Castleknock area by Gardaí from the Drugs and Organised Crime Bureau including the Serious Crime Task Force.

Drug paraphernalia and mixing agents were also recovered during the search operation.

A man in his 30s was arrested in connection with the investigation.

He's being held at Blanchardstown Garda Station, where he can be questioned for up to 3 days.