New Delhi, May 27 -- The Delhi Police on Tuesday arrested a 28-year-old building owner and a contractor in connection with the death of a daily wage labourer who allegedly inhaled toxic gases while cleaning a septic tank at a residential building in east Delhi's New Ashok Nagar on Sunday.

Police identified the accused as Deepak, the owner of the four-storey building where the incident took place, and contractor Anil Kumar. A 32-year-old plumber who attempted to rescue the labourer also lost consciousness and is currently undergoing treatment at Lal Bahadur Shastri Hospital.

Deputy commissioner of police (east) Rajeev Kumar said preliminary inquiry and spot inspection revealed that no safety equipment or protective gear had been provided...