Rescuers say flooding and toxic gas in the collapsed tunnel make it unlikely any remaining trapped workers survived.
The tunnel under construction collapsed following an explosion in the ‘Head Race Tunnel’ and a geologist from Kottayam is feared trapped inside the tunnel after a landslide blocked its entrance
Rescue operation is ongoing but hazardous conditions have hampered efforts to reach those still inside.
Rescue teams have been struggling to reach the 17 people trapped because of hazardous conditions inside the tunnel.
The workers were trapped inside the under-construction tunnel after a landslide blocked its entrance and triggered a suspected gas leak, officials said
The landslide also triggered a suspected gas leak inside the Samardung tunnel, police said