On Saturday morning, the residents of Helsingborg woke up to another bomb attack in the city.
It was at 03:44 when the police received reports from residents about an explosion in a stairwell on Södergatan in the city.
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At 05:00, the Helsingborg police were waiting for the national bomb squad to arrive at the scene to investigate what had exploded.
The bomb attack caused no injuries, but the police have asked residents in the building to stay indoors.
The incident is being treated as a case of severe public endangerment. As of Saturday morning, no suspects had been arrested in connection with the bomb attack.