The explosion is believed to have occurred at a door in the building's stairwell, which became filled with smoke. Several people are reported to have inhaled smoke as a result of the incident, the police write on their website . However, no one has had to be taken to hospital by ambulance, according to the emergency services.
The incident is classified as public danger and a violation of the Flammable and Explosive Goods Act. No one has been arrested.
The police have cordoned off the area and residents will be accommodated in their homes. The alarm came in around 11:30 p.m. on Friday.
