It happened in the early hours this morning.
A man has died following a crash on the M1 at Balbriggan in Dublin.
The car he was driving collided with another car near Junction 6 heading northbound, at around half 5 this morning.
He was pronounced dead at the scene while the driver of the other vehicle was taken to hospital with non-life threatening injuries.
The road remains closed and forensic collision investigators have been called in.
Anyone who witnessed the crash is being asked to contact Gardaí.