The property has been evacuated and some people have been helped to get out of the property with the help of smoke divers.
– I think it must have started to burn in an apartment and gone up in the attic. The entire attic is overheated, says Ola Jakobsson, officer on duty.
Several ambulances were called to the scene and three people have been taken to hospital.
A VMA, an important message to the public was issued and everyone in the area was urged to go indoors and close doors, windows and ventilation. The request is no longer valid.