In the West of Poland in the city of Świebodzice collapsed houses, reports Polskie Radio.
At the moment rescue operation is underway. Under the rubble are up to 15 people, two already managed to evacuate.
According to preliminary data, the stone structure would collapse because of explosion of domestic gas.
In Brussels in March because of domestic gas explosion collapsed two houses. One of them was destroyed completely, from the second building only the facade remained. One person suffered serious injuries.