A man is in critical condition after a motorcycle and car collided on a feeder road to the M50 on Sunday afternoon.
Gardaí are investigating the incident which took place on the slip road from Ballymun onto the southbound M50.
The man in his late 20s, who was on the motorcycle, was taken from the scene to Beaumont Hospital, where he is in critical condition. The driver and sole occupant of the car, a woman in her late 30s, was unharmed.
Garda Forensic Collision Investigators are currently on site conducting a technical investigation. The road has been closed to facilitate the investigation, with local detours.
Gardaí are asking all witnesses to the collision, particularly those with video/dashcam footage, to contact Ballymun Garda Station on 01-666 4400, the Garda Confidential Line on 1800-666 111 or any Garda Station.