A shot was fired from a loaded gun in a residential area of Dublin after a child picked up the weapon which had been thrown away during a police chase.

The child, believed to be about 11 years old, reportedly found the discarded gun in a bush in Ballymun on Tuesday afternoon.

Gardaí (Irish police) said they had earlier arrested a teenage boy and a man in his 20s after responding to a "firearm incident".

It was the second loaded gun to be found in Ballymun within a three-day period after officers found a handgun hidden in a bush near a playground on Sunday.

There were no reports of any injuries in Tuesday's shooting.