Two workers were killed and three others injured due to gas leakage from Gas Authority of India Ltd's LPG pipeline in Telangana's Nalgonda district on Saturday, an official statement said.
The incident occurred during routine maintenance on GAIL's Vizag-Secunderabad LPG Pipeline at Suryapet, about 140 km from Hyderabad.
A GAIL employee and one contract employee lost their lives and three others were injured, said a statement by GAIL, which described it as "operational incident".
The injured which includes one GAIL employee and two contract employees have been shifted to Hyderabad for treatment.
The fatalities and injuries happened due to mechanical impact during normal pipeline pigging and cleaning operation. There was no fire or explosion in the incident, said the statement.
The operations were being carried out by TDW India, which is a 100 percent subsidiary of TDW, US, it added.