Seoul Metro said normal operations resumed after measures to address a gas leak at Anam Station on Subway Line 6 were completed on the morning of the 12th.
According to Seoul Metro, around 10:40 a.m. that day, carbon dioxide leaked while a fire inspection was underway at a substation on the first basement level of Anam Station.
Civilians in the station evacuated, and for about 20 minutes, trains in both directions did not stop at Anam Station and passed through.
Fire authorities deployed 19 vehicles and 84 personnel to the scene. No casualties were reported.
Seoul Metro plans to investigate the exact circumstances of the accident.
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