The alarm came on Tuesday morning.

"Right now, only smoke and no visible flames are visible.

The crisis organization at the refinery has been mobilized.

We are currently prioritizing getting to a safe location by extinguishing the fire.

The affected area has been evacuated,"

writes Hans Östlin, head of communications at Nynas AB in an email to SVT Stockholm.

The public may be affected in the form of odors from fire smoke in the wind direction, but the smoke is currently not considered to be harmful outside the refinery area.

The text is updated.