A suspected gas explosion caused a tunnel collapse at a hydropower project in northeast India, killing at least 10 people [1, 2].
The incident highlights the extreme dangers facing infrastructure workers in remote mountainous regions, where volatile geological conditions can lead to catastrophic failures.
Rescue teams are currently attempting to reach those still missing, but the operation faces severe obstacles. The presence of toxic gases within the tunnel has prevented rescuers from entering the site to reach the trapped individuals [3].
Reports on the casualty count vary. Some sources said 10 people died [1, 2], while other reports said as many as 12 fatalities [3].
Similarly, the number of people remaining trapped is under dispute. Some reports said 17 people are missing [1, 2], while other accounts said 13 workers remain trapped [3].
The collapse occurred during construction at the hydropower site. Authorities said a gas explosion triggered the structural failure, an event that instantly buried workers and blocked the main access points.
Emergency responders are working to ventilate the tunnel to remove the hazardous fumes. Until the air is deemed safe, rescue teams cannot move deeper into the debris to locate survivors.
“A suspected gas explosion caused a tunnel collapse at a hydropower project in northeast India”
This disaster underscores the high-risk nature of tunneling in the Himalayas, where unstable terrain and pockets of trapped gas frequently complicate hydropower development. The discrepancy in casualty and trapped-person counts suggests a chaotic scene and difficulty in maintaining an accurate manifest of personnel underground during the emergency.
