At least four workers reportedly died and a few others fell ill after inhaling a toxic gas leaked from a unit at Rourkela Steel Plant (RSP) of the state-owned SAIL in Odisha.
The incident took place at the Coal Chemical Department of RSP on Wednesday morning, when a total of 10 workers were on duty.
"According to a preliminary report, the four workers died due to emission of carbon monoxide gas from the unit," news agency PTI quoted officials as saying. The four were contractual workers engaged by a private company, they added.
They were admitted to the ICU of the Ispat General Hospital (IGH) where they died and a few others are being treated in the RSP dispensary.
The RSP authorities have ordered a high-level probe into the accident, they said.
Meanwhile, shares of SAIL were trading at Rs 76 apiece, down 2.5 per cent, against the previous closing price of Rs 77.95. During the day's trade, the stock hit an intraday low and high of Rs 79.15 and Rs 75.20, respectively.