A number of vehicles have been involved in the crash in Bridgend.
The road traffic collision occurred at the junction between the Buncrana Road and the back road to Muff, just past McIntyre’s 19th hole pub.
There are long delays in the area and traffic is being diverted via the Slab Road.
Gardaí are urging motorists to slow down in the area while they deal with the scene of the crash.