After studying the damage after the detonation at Östermalm in Stockholm, Sonny Björk states that it is a powerful explosion.
- There is no doubt about that. It has broken through concrete floor joists, so there are holes from the stairs down into the basement. It indicates that it was a lot of explosives, he says.
The explosive charge must have been located outside the entrance to a multi-dwelling house on Gyllenstiernsgatan on Östermalm.
- In case it is he who is seen in the video who is the perpetrator, it worries me that he has no control over whether there is any person nearby. It is incredibly ruthless. If someone had passed when it was detained, it could have gone really badly, says Sonny Björk.