This is a developing story.
A suspected gas leak seems to be responsible for an explosion that killed at least four injured at least two dozen more, and caused a building to collapse.
The explosion happened in an apartment building in the town of Pozan, in western Poland.
The explosion on Sunday morning destroyed four of 18 apartments in the building, PAP said, quoting a local fire brigade representative.
The prosecutor’s office said an investigation is expected to start on Monday.
“Looking at the degree of destruction of this building, it was initially assumed that it could have been a gas explosion, but we do not have certainty yet. For now, our activities are focused on the rescue operation,” a state fire service spokesman told broadcaster TVN24.
Many households in Poland use gas for cooking or heating water.
This video from Ruptly details the situation at the scene of the gas explosion.