At least 31 people died when a massive rockslide crushed a shanty town in Cairo on Saturday.
Many more - including children - are believed to be still buried in the rubble in the eastern Duwayqa district of the capital.
Rescuers and local residents dug through the night - many of them scrabbling at the boulders with bare hands.
However, officials admit that hopes of finding survivors are beginning to fade.
It was not clear what caused the rockslide, but some residents blamed the authorities for building poor quality houses close to unstable hills.