Police have determined that the explosion, which took place at 04:00 on Wednesday morning, was not an accident.

What exploded is still unclear.

- How this was achieved remains to be seen, says police preliminary investigation leader Lars Nordanbro.

The shops open again

Analysis of the technical investigation carried out at the site and of the surveillance footage collected is still pending.

The building owned by the municipal housing company Tunabyggen was initially closed, but since Saturday the shops in the building have been able to stay open.

Start the video to see how much has been destroyed inside the entrance!