Muzaffarpur: At least four sanitation workers died after inhaling poisonous gases while cleaning a septic tank in Madhuban Kanti village of Muzaffarpur in Bihar on Tuesday.
According to reports, another worker, who went to rescue the trapped sanitation workers, is also in critical condition.
"My brother went into the tank to save my father. All four were members of the same family and they died of suffocation," said Sumit Kumar, son of the deceased.