Gujarat: 4 labourers from Bihar die of suffocation inside tank in Surat

Surat (Gujarat) [India], November 15 (ANI): Four labourers from Bihar died of asphyxiation while cleaning a factory's septic tank here in Kamleshwar village in Surat on Tuesday, police said.
The incident took place at a dyeing factory on Palsana-Katodara road on Tuesday evening.
"...Four workers had gone to clean the (septic) tank and died due to suffocation. Further investigation is underway. We are questioning seniors of the factory...All the four deceased are the residents of Bihar...," H L Rathore, Deputy Superintendent of Police (DYSP), Bardoli Division, told ANI.
The deceased workers were living in a colony of the factory, he said.
"We received a call at 6:30 am on Wednesday following which a team reached the spot and discovered that four workers had allegedly died due to suffocation," an official added.
According to the official, they are investigating into the number of times the tank is cleaned annually.
The incident occurred under the ambit of Palsana police station in Surat.
The official said officials of the factory are being questioned.
More details are awaited. (ANI)