At least eight people were hurt in a blast at S-Oil Corp's Onsan refinery in Ulsan, South Korea on Thursday, the Yonhap news agency reported
S-Oil is the country's third-largest refiner and its main shareholder is Saudi Aramco. The 669,000-barrel-per-day (bpd) refinery is located about 380 km (240 miles) southeast of Seoul.
(Reporting by Arpan Varghese in Bengaluru; Editing by Angus MacSwan)