As hundreds of rescue workers scoured muck-filled ravines and valleys on Tuesday looking for survivors after the sudden collapse of a Himalayan glacier, distraught relatives gathered at the disaster site to search for family members, almost resigned to the likelihood they were dead.

Hundreds of rescue workers were scouring muck-filled ravines and valleys in northern India on Tuesday looking for survivors after part of a Himalayan glacier broke off, unleashing a devastating flood that has left at least 31 people dead and 165 missing.