Flash floods caused by heavy overnight rain have killed at least 15 people and caused destruction in central Greece.
The industrial towns of Mandra, Nea Peramos and Megara, west of the capital Athens, were the most affected.
Many of the dead were elderly people whose bodies were found inside their homes, reports say. Fast-flowing torrents of red mud flooded roads.
Prime Minister Alexis Tsipras declared a period of national mourning in the wake of the tragedy.
“Everything is lost. The disaster is biblical,” Mandra Mayor Yianna Krikouki told state broadcaster ERT.
At least 37 people have been taken to hospital, the broadcaster said, and some are still missing.