The Garda Commissioner has praised three gardaí who responded to reports of shots being fired in Dublin's Ballymun yesterday evening.
The alarm was raised when a man was seen armed with a sub-machine gun and firing randomly into the air.
Gardaí were called to a report of a man armed with a firearm in the Poppintree area of Ballymun at around 4.45pm yesterday afternoon.
Garda Armed Support Units were also dispatched to the scene.
However, a man in his 30s was arrested shortly afterwards by unarmed gardaí - a Sergeant and two local Garda members - and taken to Ballymun Garda Station.
Gardaí also recovered a firearm after gaining entry to a house on Cranogue Road.
The house was sealed off for a time while the Defence Forces were called in to deal with a suspect device, thought to be a grenade, which was made safe shortly before 8pm.
Commissioner Drew Harris, who visited the scene last night, said "The gardaí involved showed great bravery in ensuring the safety of the public."