The police were alerted to an explosion in Norsborg south of Stockholm on Saturday evening.
It's an area with row houses and it's outside one of them that the explosion occurred. We only know of material damage so far, says the police's press spokesperson Daniel Wikdahl.
It's unclear if anyone was in the residence at the time of the detonation, and the damage to the row house is according to the police "of a minor nature". No one has been arrested.
We're securing the crime scene and gathering information about what happened. At the same time, we're trying to understand where a perpetrator might have gone, says Wikdahl.
The incident is being investigated as reckless endangerment.
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