The number of trapped individuals was initially thought to be 30.

The portion of the tunnel collapsed behind the Srisailam dam when some workers went inside to repair a leak.

Three workers, who were trapped inside the tunnel, managed to escape from the spot.

A rescue mission is currently underway to pull out the trapped people.

Telangana Chief Minister Revanth Reddy expressed shock over the incident.

Union Coal Minister G Kishan Reddy wrote on X: "I am investigating the SLBC tunnel accident that happened today. I spoke to the authorities and inquired about the accident. I have instructed the authorities to provide emergency treatment to the injured and to bring out th