“No production damage and no casualties have been reported so far. The fire started due to a small explosion at a gas pipe which had leakage. Once heavy dust near the furnace is cleared, we will find out the exact damage to the facility,” a POSCO spokesman said.

A firefighter in Gwangyang confirmed POSCO’s assessment of the incident.

The No. 2 furnace, where the accident broke out, has an annual production capacity of 3.5 million tons, around 10 percent of POSCO’s total capacity, the spokesman said.