– There is some property damage to the facade and to a vehicle that is adjacent to the premises, says Niklas Berglund, officer on duty at the police.
The police were alerted to a loud bang shortly before half past one on Tuesday night.
– There are indications that it could be a hand grenade, but it is not one hundred percent established yet, says Berglund.
The police have started a preliminary investigation into public danger devastation and are working with a technical investigation at the scene. No one should have been injured in connection with the detonation.