A powerful explosion rocked a stairwell in Helsingborg early Saturday morning, causing significant material damage but fortunately no injuries.

The incident occurred around 4 AM, prompting multiple calls to the police about a loud bang.

Authorities, including the national bomb squad and police technicians, were dispatched to the scene to investigate the cause of the explosion, which remains unclear.

Residents were advised to stay inside their apartments while the area was secured.

The police are treating the event as a case of serious public endangerment, although no suspects have been identified or detained yet.

Investigations are ongoing to determine if there was a specific threat against any individual or business in the building.