Survival chances for the trapped workers were slim, state disaster management official Rajiv Roka said, as rescuers had to battle the fumes, making their task difficult.

At least 10 people were killed and 17 remain missing after a suspected gas explosion triggered a collapse inside an under-construction tunnel at a hydropower project in India’s northeastern Himalayan ...

At least 10 people have died in a disaster inside an under-construction tunnel in India.

Rescue teams have been struggling to reach the 17 people trapped because of hazardous conditions inside the tunnel.

At least 10 people have been killed and 17 others remain missing after a disaster inside an under-construction tunnel linked to a hydroelectric project in India’s northeastern state of Sikkim, ...

A deadly landslide in Sikkim’s Namchi district turned a construction site into a scene of devastation, leaving at least 10 people dead after an under-construction tunnel of the NHPC Teesta Stage VI ...

The workers were trapped at least three kilometers inside the tunnel and rescue operations were continuing despite rain and inclement weather.

At least 13 workers have died and more are trapped after an under-construction tunnel at a hydroelectric project collapsed in India’s northeastern state of Sikkim, the project’s developer NHPC Ltd.

Race to reach trapped workers after 10 killed in tunnel collapse caused by methane explosion in India - The tunnel is part of a hydropower project under construction in the Himalayan state of Sikkim ...

The incident, believed to be caused by an attempt to vent naturally occurring methane gas in the tunnel, triggered an explosion which in-turn caused the landslide that sealed the tunnel ...

Officials said methane gas levels inside the tunnel are still very high, making it impossible for rescue teams to reach the area where the trapped workers are believed to be.