POHANG, Jan. 25 (Yonhap) -- Four workers died Thursday after inhaling an unidentified toxic gas at a factory of the country's top steelmaker, POSCO, in the southeastern city of Pohang, police said.
The accident took place at a facility designed to provide air to a blast furnace. Police suspect that the workers might have breathed in nitrogen from a leak in the facility.
The company is trying to establish the cause of their deaths.
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