Emergeny services say the fire started after 1:30 am, in an apartment on the third floor.
By the time rescue teams arrived at the scene, flames had taken over the entire apartment and could be seen through the window. Thick smoke developed quickly and damaged a number of neighbouring apartments.
Firefighters found a man’s body in the apartment in which the blaze started. The victim’s identity has so far not been confirmed, police say. Nobody else was seriously injured, but a 40-year-old woman was taken to the hospital with minor injuries.
Kent Lind, county police officer in Dalarna said it was unclear whether the fire had spread to other apartments but many have been smoke damaged, he added.
“What will happen to them is up to the municipality to figure out now,” said Lind.
Evacuated residents took shelter in a nearby building for the night. The cause of the fire is still unclear, but police say they have not ruled out arson.
“The fire could also have started from a candle holder but at the moment we don’t know,” said Bo Persson of Dalarna police.