A man in his 20s lost his life in a single vehicle road crash which occurred on the N7 Naas Road near Tallaght this morning.
The road was closed outbound for several hours on Saturday morning to allow a Garda forensic investigation and the N7 outbound from Newlands Cross has now reopened to traffic.
Gardai are appealing for witnesses to contact Clondalkin Garda Station on 01 6667600, The Garda Confidential Telephone Line 1800 666 111, or any Garda Station.
Road closures and diversions are in place.
The driver of received fatal injuries when his 4x4 vehicle collided with a barrier near Junction 2 Kingswood at about 6.20am.
It is understood the accident happened shortly after 6.30 am this morning.