Gardaí are appealing for witnesses.
A teenage boy has died after being hit by a car in County Mayo overnight.
The N17, near Claremorris, has been closed for forensic examination and Gardaí are appealing for witnesses.
A major nationwide crackdown on road safety is continuing today, with Gardaí out in force across the Easter Bank Holiday Weekend.
Sergeant Gavin Coleman from the Garda Traffic Division says road deaths are already up a quarter on last year.