At least 20 people were killed and five remained trapped after a methane gas explosion triggered a landslide and collapse inside an under-construction NHPC tunnel in Sikkim’s Namchi district. Toxic fumes and low oxygen levels hampered rescue efforts

Sikkim tunnel collapse: Death toll rises to 20, rescue operations underway to save 5 trapped workers

A major rescue operation is underway in Sikkim after a methane gas explosion triggered a landslide inside the under-construction NHPC Teesta Stage-VI tunnel project, trapping several workers deep inside the tunnel.

At least nine dead, several trapped as methane explosion triggers landslide inside tunnel in Sikkim

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sikkim tunnel-collapse

Sikkim tunnel collapse: Death toll rises to 20, rescue operations underway to save 5 trapped workers

Sikkim tunnel disaster: Nine dead after methane blast triggers landslide