The fire alarm came at 7.20pm on Thursday.
According to the caller, he could see how it burned with open flames in the terrain.
14 units from the rescue service have been alerted to the fire.
Burning on the slope
Just before 20.30, the first unit was in place.
According to the rescue service, there is a fire on a slope and the rescue crew is currently working to get closer to the fire.
In order to be able to start extinguishing, off-road vehicles are required in order to then be able to build up an extinguishing system.
The extent was still unknown at 9 p.m.
The rescue service has also requested help from MSB in the form of a helicopter.