Dozens trapped in tunnel after Himalayan glacier's collapse, scores still missing

Members of Indo-Tibetan Border Police (ITBP) watch as a machine is used to clear a tunnel after a part of a glacier broke away, in Tapovan in the northern state of Uttarakhand, India, February 8, 2021. REUTERS/Stringer NO ARCHIVES. NO RESALES.

LUCKNOW, India (Reuters) - Rescuers raced to free around 35 Indian construction workers trapped in a tunnel, two days after the hydroelectric dam they were helping to build was swept away by a wall of water from a collapsed glacier that barrelled down a Himalayan river.

The workers were among 197 people who officials said were still unaccounted for as the death toll from the disaster - which also broke apart bridges, cut off villages and scarred tracts of mountain landscape - rose to 28.