A one-year-old boy remains in a serious condition in hospital after being injured in an incident last night in Dublin involving a scrambler and a quad bike.
It happened at around 7pm in Cherry Orchard Park in Ballyfermot.
It is understood a woman in her 20s was sitting on a stationary quad bike holding the boy when a scrambler struck the quad.
The young boy was taken to Crumlin Children's Hospital where his injuries are understood to be serious but not life threatening.
The suspected driver of the scrambler, a man in his late teens, was taken to St James Hospital with non-life threatening injuries.
He has since been discharged.
The scene has been preserved for technical examination.
The scrambler involved in the collision had been removed from the scene before gardaí arrived.
Gardaí are appealing for witnesses to contact them at Ballyfermot Garda Station or the Garda Confidential Line on 1800 666 111 .