A methane gas explosion at an under-construction hydropower tunnel in India's Sikkim state has killed at least 12 workers. Rescue teams are struggling with toxic gas and flooding in the seismically active Himalayan region where the project is located.
A powerful methane gas explosion tore through an under-construction tunnel at the 500-megawatt Teesta Hydroelectric Project in the Himalayan state of Sikkim, India, on Monday, July 20, 2026.
The blast occurred at the hydropower site located in Samardung village, approximately 40 kilometers south of the state capital, Gangtok. Rescue operations faced immediate challenges due to the accumulation of lethal methane gas and flooding within the tunnel. Authorities have confirmed the recovery of 12 worker bodies from the disaster site, with many more feared trapped. Rescue teams, including the National Disaster Response Force, utilized specialized breathing apparatus and night-vision equipment to navigate the hazardous conditions.
Administrative official Anupama Tamling reported that the rescue effort was severely hampered by the dangerous gas buildup and water infiltration. The Teesta River basin is a seismically active region characterized by young, fragile mountain rock formations. These geological conditions, riddled with fractures and underground cavities, are prone to trapping ancient gases like methane, making large-scale tunnel construction exceptionally risky.
Experts warn that the combination of seismic activity, unstable terrain, and unpredictable underground environments significantly heightens the danger for such infrastructure projects in the Himalayas. The incident underscores the precarious balance between developmental ambitions and geological realities in one of the world's most ecologically and geologically sensitive areas. The Associated Press reported the incident, noting the ongoing rescue and recovery efforts amidst extremely dangerous conditions
Please follow us on Google to support usIndia Sikkim Tunnel Collapse Methane Explosion Hydropower Teesta Rescue Himalayas Geological Hazard
United States Latest News, United States Headlines
Similar News: You can also read news stories similar to this one that we have collected from other news sources.
Top 4 Action Movies That Are Guaranteed to Be a BlastLooking for action-packed movies that are sure to entertain? Check out these four films that deliver on thrills, humor, and epic scale.
Read more »
Driven: Subaru’s 2026 WRX Base Model Is a Blast and a BargainWe drove the 2026 Subaru WRX Base through some of the best roads in Wales to see if Subaru’s most affordable sports sedan is still worth buying.
Read more »
Largest known bottlenose dolphin stranding off New England coast prompts massive rescue effortFollowing a massive rescue effort to save a large group of bottlenose dolphins that stranded along Cape Cod, marine mammal experts are now tracking survivors in deeper waters.
Read more »
At Least 11 Dead, 14 Missing After Gas Explosion Causes Tunnel Collapse at Sikkim Hydropower ProjectA methane gas explosion triggered a tunnel collapse at a hydropower construction site in Sikkim, India, killing at least 11 workers and leaving 14 missing. Rescue teams battle toxic gases and hazardous conditions to save those trapped, highlighting the risks of infrastructure projects in the seismically active Himalayan region.
Read more »