"There is a full-scale fire out there, and we have many fire engines and a lot of personnel on site. About 20 hectares are burning in very steep, rugged terrain," says alarm and control operator Bosse Florell.
He also says that, although the fire is still burning, the smoke has eased as temperatures dropped overnight.
The rescue service is now waiting for helicopter reinforcements this morning.
The Delsjö area in eastern Gothenburg is an approximately 1,370-hectare popular outdoor recreation area.
