A section of the road at Navenny/Dreenan in Ballybofey remains closed this morning as a result of a road traffic collision.
The collision occurred yesterday evening and the road remains closed this morning as Garda Forensic Collision Investigators conduct a technical examination of the scene.
One man remains in Letterkenny University Hospital with serious injuries sustained as a result of this incident.
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Diversions are currently in place.
Motorists are advised to avoid the area or take an alternative route.