The man's condition is understood to be critical following the collision last night
Gardaí are appealing for information after a serious collision in Co Monaghan last night.
A 74-year-old man sustained serious injuries when he was struck by a car on a road at Bough, near Scotstown.
The man was taken to Cavan General Hospital, where his condition is understood to be critical.
The driver of the car - a man in his 20s - was not injured.
Garda forensic investigators are at the scene and local traffic diversions are in place.
Anyone with information about the collision is asked to contact Monaghan Garda Station on 047-77-200, or the Garda Confidential Line on 1800-666-111.