According to SOS Alarm's operator, around 1.5 hectares will burn outside Malmköping.
It can be compared to about one and a half football fields.
Just before 7 pm, the fire was fought by five units from the rescue service.
According to SOS Alarm, it is relatively calm at the site, but there is so far no forecast for when the fire may be extinguished.
According to information to SOS Alarm, it must have been a driver of a drone who discovered and reported the fire.