Tunnel collapses at Indian hydropower project, killing at least 7

A tunnel under construction at a hydropower project in India's northern hill state of Uttarakhand collapsed overnight, leaving at least seven workers dead, officials said on Friday.

A rescue operation was launched after a sudden rush of water and debris entered the tunnel at the Vishnugad-Pipalkoti hydroelectric project in Chamoli district on Thursday night, said top district official Gaurav Kumar.

Of the 22 people who were working in the tunnel, 12 have been rescued alive, and another three are still missing, the chief minister of Uttarakhand state Pushkar Singh Dhami told reporters.