"A fire broke out at our Pohang steel plant - two factories at the plant have been affected by the fire - and we are trying to find out cause of the fire," the POSCO spokesperson said in a statement, adding it was too early to tell if the fire had been caused by a typhoon that is crossing South Korea.
The impact of the fire was not immediately known. Yonhap first reported the fire.
South Korea raised its typhoon-alert to its highest level on Monday as approaching Typhoon Hinnamnor forced flight cancellations, the suspension of some business operations and the closure of schools.
(Reporting by Soo-hyang Choi; Additional reporting by Heekyong Yang; Editing by Kim Coghill and Muralikumar Anantharaman)
