A tank containing coke gas caught fire Friday morning at the Nagoya ironworks of Nippon Steel Corp. in the city of Tokai, Aichi Prefecture, nine days after an explosion rocked the site, the local fire department said.
The fire started around 10:50 a.m. and was contained by 12:40 p.m., the fire department said. There were no injuries.
Nippon Steel said the production line at the plant was unaffected by the blaze.
The fire occurred while workers were reinforcing the tank against possible damage from Typhoon Maemi when sparks from welding operations ignited lubricating oil at the bottom of the tank.
Friday's fire occurred east of the 50-meter-high tank that exploded around 7:40 p.m. Sept. 3, injuring 15 people.