Emergency services are currently at the scene of a two vehicle collision that occurred on the Rockcorry to Cootehill Road.
Diversions are currently in place and Gardai are asking motorists to avoid the area at this time.
The road is set to remain closed for several hours.
Gardaí have issued the following statement this evening:
Gardaí are currently at the scene of a serious road traffic collision on the R188 in County Monaghan in between Cootehill and Rockcorry, near Cootehill.
The road is currently closed. Local diversions are in place.
More to follow.