Rescuers in India's Himalayan state of Uttarakhand say they have located 4,000 people trapped by landslides, but eight villages are feared washed away by unusually heavy monsoon flooding. More than 100 people have died.

The government of India's alpine state of Uttrakhand said on Thursday that troops and medics were still trying to reach eight villages thought washed away by floodwaters in recent days.

State spokesman Amit Chandola put the official death toll at 105 but also said authorities had been unable to reach eight villages.