Gardai are appealing for witnesses after a man was killed while walking on the M50.
The accident happened during rush hour yesterday, when a pedestrian in his 20s was hit by a truck close to the Ballymun exit.
He was pronounced dead at the scene and his body has been taken to Connolly Hospital in Blanchardstown.
A post mortem is due to take place.
Any witnesses or anyone with information is asked to contact Ballymun Garda Station.