A section of the main Donegal-Ballyshannon road is closed this morning following a road traffic collision.
The collision occurred just outside Laghey on the Ballyshannon side of the N15,
Emergency services are attending the scene, where one of the cars had overturned and was blocking the northbound lane.
A stop/go system is in place as Gardaí and fire tenders clear the route.
The extent of injuries sustained is not yet known.