Hyderabad, Feb. 22 -- Seven workers are feared trapped after a portion of an under-construction tunnel as part of Srisailam Left Bank Canal (SLBC) collapsed in Telangana's Nagarkurnool district on Saturday. At least 50 workers were on the site when a portion of the tunnel collapsed behind the Srisailam dam near Domalapenta. According to officials: "The roof of the left-side tunnel collapsed for three metres. The accident occurred at the 14th km point." While 43 workers came out of the tunnel, the remaining seven were feared trapped.

Electricity supply to the tunnel was disrupted. Police, fire services personnel, and officials of the Irrigation Department rushed to the spot and launched rescue operations. Irrigation Minister Uttam Kumar R...