Hyderabad, Aug 22 (TIWN) Efforts are on to rescue nine employees trapped inside after a fire broke out at TS Genco's underground hydroelectric power station at Srisailam left bank canal in Telangana on Friday.

Nagarkurnool district Collector L Sharman said three fire engines were engaged in extinguishing the huge smoke emanating from the plant's premises.

While Chief Minister K Chandrasekhar Rao was monitoring the rescue work through his cabinet colleague, Union Minister of State for Home, Kishan Reddy, said he has asked the National Disaster Response Force to join the rescue efforts. 

"There is huge smoke and because of it we are not able to enter into the plant premises. By 11 am we expect to enter the plant," Sharman said, adding, nine persons including seven staff members are stuck.