There was no indication, however, that anyone was buried under the rubble, public broadcaster Polish Radio reported.
Staff from a construction firm were carrying out renovation work on the four-storey building in the southern city of Rybnik when one of its walls disintegrated, but managed to escaped in time.
Eight fire brigade crews were sent to the site.
Photo: PAP/Andrzej Grygiel.
(pk)
Source: PAP