The first alarm came around 15.30 on Saturday, and according to callers, it then burned in several places. Hällmyran is located northeast of Gålsjöbruk
As many as 16 rescue services from several locations are in place, and support has been requested from the helicopter from MSB, which will be on the road at 18.30.
There is currently no forecast for when the fire could be under control, says SOS Alarm.