Korea Railroad Corporation (KORAIL) said that due to the fallout from the collapse of a structure at the Seosomun overpass demolition site in Seodaemun District, Seoul, on the 26th, nationwide train operations on the 27th were at about 80% of normal levels.
KORAIL said the total number of train runs that day was reduced to 552 from the usual 683. The operation rate was 80.8%. High-speed trains (KTX, KTX-Eum) were operating at about 66.3%. Service was suspended on the Haengsin–Seoul and Seoul–Cheongnyangni sections.
Conventional trains (ITX-Saemaeul, ITX-Maum, Mugunghwa, etc.) were operating at about 87.2%. The Gyeongbu, Honam, and Jeolla Lines of the ITX-Saemaeul and ITX-Maum were all being operated with Suwon Station as the origin and terminus. The Gyeongbu, Honam, and Jeolla Lines of the Mugunghwa were operating only as far as Daejeon and Seodaejeon stations. Trains on the Janghang Line were also operating only as far as Cheonan Station.
At about 2:32 p.m. on the 26th, at the Seosomun overpass demolition site in Seodaemun District, Seoul, an overpass structure being dismantled fell below and struck the catenary between Seoul Station and Sinchon Station, cutting power.