A teenager has died after a road crash in west Dublin.
It happened on the N7 Naas Road at Clondalkin at around 12.30am on Saturday morning.
The collision involved a car and a van on the westbound lanes of the dual carriageway.
A blue Peugeot 307 crashed into a white Mercedes van.
The Peugeot, with a '03 LH' registration, travelled along the Belgard Road before driving onto the N7 and colliding with the van.
The collision happened on the outbound side of the carriageway, with the car on the wrong side of the road.
Gardaí say the car had come to their attention in Tallaght, shortly before the collision.
A referral has been made to the Garda Síochána Ombudsman Commission (GSOC).
The 17-year-old teenager was the driver and only person in the car.
He was pronounced dead at the scene.
His body has since been removed to the mortuary at Tallaght Hospital.
The three people in the van - two men aged 45 and 36, and a nine-year-old boy - were taken by ambulance to Tallaght Hospital.
Their injuries are not thought to be life-threatening.
Garda forensic collision investigators have examined the crash site and both vehicles involved.
The road has since fully re-opened to traffic.
Investigating Gardaí are appealing for witnesses, and in particular to anyone with camera footage, to make it available to them.
Anyone who may have seen the blue car between Tallaght and the scene of the collision - or witnessed the incident - are asked to ring the GSOC witness appeal line on 1890-600-800.