PATNA: Four labourers met a tragic end as they died of asphyxiation while cleaning a septic tank. The incident took place at a dyeing factory on the Palsana-Katodara road in Surat on Tuesday evening. The deceased are natives of Bihar.

The police arrived at the scene at 6:30 am today. The workers were found unconscious in the tank. Superintendent of Police HL Rathore said that the workers were rushed to the hospital but could not be saved. The deceased lived in a colony near the factory.

The police told the media that they are interrogating the factory officials in connection with the incident. According to the preliminary investigation of the police, the authorities said they gave the necessary preliminary treatment to the workers. The police said that they are collecting further details of the deceased.