A man has been arrested after fleeing from a stolen car that rammed a Garda vehicle.
Gardai also recovered a gun when they detained the 25-year-old, who is being questioned in Rathfarnham.
Officers tried to stop an Audi, which they believe was stolen, at Daletree Place in Ballycullen, Dublin, on Thursday night at around 10.15pm.
The three men in the car fled on foot and Gardai gave chase.
One of them was later caught and taken into custody.
One of the men is believed to have discarded the firearm, which was found nearby.
A Garda spokesman said investigations were ongoing.