The stairwell caught fire. One of the residents probably set it alight. Five people were evacuated. Two were taken to hospital. Firefighters brought the danger under control. Firefighters from Bolesławiec, Nowogrodziec and Warta Bolesławiecka took part in the operation. The police, gas emergency services, power emergency services and municipal police remained at the scene.
Update
We learned unofficially that one of the residents tried to light a stove, which exploded.
The photo comes from the Facebook profile of the Volunteer Fire Department from Warta Bolesławiecka