An explosion has occurred in connection to a company premises in Märsta north of Stockholm.
There are some property damages to the facade and to a vehicle parked in connection to the premises, says Niklas Berglund, duty officer at the police.
The police were alerted about a loud bang just before half past twelve, during the night towards Tuesday.
There are indications that it might be about a hand grenade, but it is not one hundred percent confirmed yet, says Berglund.
The police have initiated a preliminary investigation into reckless endangerment and are working with a technical investigation at the site. No one is reported to have been injured in connection with the detonation.
