Telangana minister Komatireddy Venkat Reddy visited the SLBC tunnel collapse site on Monday to assess the ongoing rescue operation, as multiple agencies continue efforts to save eight workers trapped since February 22.

While rescuers have managed to cover a large part of the tunnel Tuesday — 13.79 km of the 13.85 km — the last part has been challenging because of a mix of water and slush at the collapse site.

Rescue operations are underway to save workers who are trapped inside the tunnel for over 72 hours. The trapped workers include two engineers, two technical staff, and four labourers. Around 13 workers sustained injuries due to the collapse but were able to come out of the tunnel with the help of 29 other workers who managed to escape unhurt.