More than 400 foreigners were among 579 tourists missing, Nepal tourism officials said. TRISHULI, Nepal/BEIJING, Aug 27 (Reuters) - Rescuers in Nepal used helicopters on Thursday to scour for hundreds still missing after a wall of mud and rock collapsed into a river on the Himalayan border with Chi»»»

TRISHULI, Nepal/BEIJING, Aug 27 - Rescue workers searched for hundreds of people still missing on Thursday after a wall of mud and rock collapsed into a river on the Himalayan border of Nepal and China's Tibet a day earlier, triggering catastrophic flooding that swept through mountain towns and val»»»