At least 11 hydropower projects were engulfed when a glacier collapsed into a river on the Nepal-China border on August 26, burying the entrances to the tunnels of these projects under debris and mud and cutting off those trapped inside.
"Our search operation is focused on finding survivors, including in tunnels. Our bigger focus is on the Chilime hydroelectric project, where we believe people are trapped, because there was a canteen, residency and arrangements for food," Dharma Raj Upreti, chief of the country's disaster authority, told Reuters.
Teams were also focused on tunnels of the Upper Trishuli 3A and 3B projects, which are linked by an interconnected tunnel, said Upreti.
"Oxygen has been supplied to these tunnels through pipes and we have sent new equipment needed for the operation (to open a passage into them)," he said.
Nepal's Prime Minister Balendra Shah vowed there would be no let-up in the rescue operations.
"We know our responsibility and its sensitivity. We are translating the humanitarian spirit of the Nepali people into practice through the search and rescue operation," he said in a social media post.
About 121 of a total 900 people missing from the hydroelectric projects could have been trapped in these tunnels, army rescuers said, while others may have been working elsewhere at the power plants but not inside the vast network of tunnels.
In recent days, search teams have rescued four people, including a Chinese national who was pulled from a tunnel on Saturday. The others were two hydropower workers rescued from another tunnel on Friday and a Nepali woman pulled out from her buried house on Saturday.
At least 1399 people have been killed by the mudslide and more than 5400 are missing, including 36 Australians. The toll includes 43 people who died on the Chinese side and 519 missing, as of Saturday.
None of the bodies retrieved in Tibet were those of foreign nationals, China's state news agency Xinhua reported on Tuesday.
Both China and Nepal have said climate change was responsible for the glacier collapse which triggered the flooding.
with Reuters
