Dozens of people are missing and feared dead after a Himalayan glacier crashed into a dam and triggered a huge flood in northern India.

As the dam broke open, a deluge of water poured through a valley in the state of Uttarakhand.

Villages have been evacuated, but officials warned more than 125 people may have been caught in the torrent.

Video showed the floodwater barrelling through the area, leaving destruction in its wake.

“It came very fast, there was no time to alert anyone,” Sanjay Singh Rana, who lives near to the Dhauli Ganga river, told the Reuters news agency.

“I felt that even we would be swept away.”

Uttarakhand Chief Minister Trivendra Singh Rawat said 125 people were confirmed missing so far, but that number could rise.

“Seven bodies have been recovered from the site and rescue operations are going on,” Mr Singh Rawat told reporters at a briefing on Sunday.

Most of those missing were workers at the two power projects swept away by the deluge.