Two labourers suffocated to death and another became critical today after inhaling toxic gas while cleaning a septic tank at Vedach village in Gujarat's Bharuch district, the police said.
"The incident occurred in the morning when three labourers were segregating solid waste from the liquid inside the tank. They fell unconscious due to the sudden discharge of toxic gas. They were rushed to a nearby hospital in Jambusar in an ambulance."
"However, two of them- Dharmendra Singh (32) and Vivek Pangade (26)- were declared brought dead by doctors at the hospital," said Vedach police station inspector B R Patel.
Another labourer, Dinesh Chauhan, has been referred to a hospital in Vadodara for treatment, he said.
Mr Patel said the supervisor of a company that deals in processing industrial waste operate a pumping station in the village.
Further investigation is underway, Mr Patel added.