New Delhi: At least four technicians died of asphyxiation after reportedly inhaling methane gas during "maintenance work" at a car factory of automobile giant Hyundai Motors.
The incident occurred near a sewage tank in the factory located in Irrungatukottai, 40 km from Chennai.
The deceased were identified Maran (32) from Chennai, an electrician Mohan Inconi (25) and two labourers, Muthu (37) and Series Karate (22).
Mohan and Series Karate hailed from Pune in Maharashtra, while Muthu hailed from Kallakurichi in Villupuram district
PTI reports another person Santosh who took ill, was rushed to a private hospital in Chennai and his condition was stated to be out of danger.
The Pune victims were trained technicians from Thermax - the company that's constructing a water tanker inside the factory - and the company has announced Rs 2 lakhs as compensation for the deceased.
Hyundai Motors has also announced an equal amount for the victims' families.
PTI reports the incident occurred at the second stage plant when the five contract employees were attempting to clean up the sewage tank, which was used to store wastes of paints and other chemical materials, the officials said.
Initial reports said there was a fire accident in the plant, but later the fire service clarified that it was an incident of asphyxiation.
Fire service officials attributed the mishap to "neglect" in undertaking maintenance work.