At lunchtime, the police announce that they are finished at the scene and continue the investigation with door-to-door knocking. The police cannot say if anyone is suspected of the incident.
Now the investigative work is underway and it will take its time, says the police's press spokesperson Christian Brattgård.
Neither the police nor the rescue service have information on how close to the explosion the injured person was.
It's about some form of detonation in an apartment building. Both the entrance and an adjacent bicycle storage have been damaged, said Sanna Lagerqvist, duty officer at the police, during the morning.
The police state that there was initially heavy smoke in the stairwell but that the apartment building did not need to be evacuated.
The alarm about the explosion came in at 03.20 during the night towards Saturday.