Hopes faded yesterday for survivors of one of Nepal's worst mountain disasters as villagers joined an intensive search by troops and government officials for as many as 40 people missing after an unseasonal blizzard killed at least 39.

More than 500 people have been rescued from a route popular with foreign adventure tourists that circles Annapurna, the world's tenth-tallest peak. The survivors included 230 foreigners.

Rescuers turned to villagers familiar with the rugged, snow-clad terrain to help look for stranded trekkers. The snow and avalanches were triggered by the tail end of a cyclone, which hit neighbouring India last weekend.

"We are not clear where the missing people are and whether they are safe or not safe," Yadav Koirala, the chief of Nepal's disaster management authority, said in Kathmandu, the capital.

"We can only hope and pray that they are not dead." Rescue teams have recovered 30 bodies and spotted nine more ."The snow is very thick, rescue teams are finding it difficult to pull the nine bodies out," he said.