Garda investigators are still at the scene of a road traffic accident which took place last night between Dungloe and Loughanure in the townland of Craugheyboyle.
Gardai have now confirmed to Donegal Daily that one woman has been seriously hurt as a result of the accident.
The road will remain closed for another number of hours as Gardai carry out their work.
Five emergency vehicles including NowDoc, fire crews and ambulances attended the scene last night.
Initial reports suggested a vehicle has left the road but it is unknown how many occupants were in the vehicle.
The accident has happened on a straight stretch of road at Craugheyboyle.