Gas Leak and Explosion Incident at Patel Engineering Ltd's Samardung Tunnel Project in North Sikkim
An incident occurred at the Samardung Tunnel project in North Sikkim involving a gas leak, which resulted in a burst and subsequent casualties among project personnel. The event took place around 1:00 PM on July 20, 2026, inside Adit-3 - Face 4B Tunnel of the project.The incident involved the sudden release of suspected methane gas that was embedded or trapped in the surrounding rocks, leading to a gas burst and explosion within the tunnel structure. The resulting blast generated dense fumes and toxic gases inside the confined space.
According to reports, the accident resulted in 25 project personnel being trapped inside the tunnel, with confirmed casualties reported at the site.
The project team is currently working closely alongside local emergency services and disaster management agencies to support ongoing rescue operations. Agencies involved in the response include the district administration, National Disaster Response Force (NDRF), State Disaster Response Force (SDRF), and other local authorities.
A detailed investigation into the incident will be undertaken by relevant authorities to ascertain the precise cause of the gas leak and subsequent explosion.
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