A massive glacier and rock collapse high in Nepal’s Himalayas appears to have set off a chain of events that culminated in one of the country’s deadliest flash floods in years, killing over 600 people and leaving thousands missing in Nepal and neighbouring Tibet.

Floods battered Nepal on Wednesday after a sudden surge in the Bhote Koshi River swept through the Rasuwa district near the China border, killing over 30 people and leaving…

NEW DELHI — A deadly flash flood near Nepal's border with Tibet on Wednesday may have been triggered when the lower part of a glacier broke off and...