The Northern Ireland Fire and Rescue Service is currently at the scene of a large fire outside Tempo.
It is understood that fire appliances from Clogher attended the scene but were unable to gain access to the fire due to the location.
The area, known as Murley or Clabby Mountain is outside Tempo, heading towards Clabby.
Flames and smoke from the fire could be seen from miles away but there was no threat to any property.
The cause of the fire has not yet been determined.