At about 2:32 a.m. on the 3rd, gas used for fire suppression leaked from the underground area of Yangjae Citizen's Forest Station on the Shinbundang Line in the Seocho District of Seoul.
According to fire authorities, four workers were inspecting fire safety equipment on the second basement level of the station when carbon dioxide stored for fire suppression leaked. Two of them were transported to a nearby hospital.
Currently, trains on the Shinbundang Line are operating normally. Police and fire authorities are investigating the exact cause of the incident.
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