Bus and subway lines passing through downtown Seoul will be diverted Saturday to reduce traffic around the time of K-pop group BTS' comeback show at Gwanghwamun Square, officials said. The section of Sejong-daero connecting the square to City Hall has been closed to traffic since 9 p.m. Friday and will remain closed until 6 a.m. Sunday. Other roads in the neighborhood will be closed for parts of Saturday, such as 4 p.m. to 11 p.m. for Sajik-ro and Yulgok-ro, and 7 p.m. to 11 p.m. for Saemunan-ro and Gwanghwamun Underpass. At Gwanghwamun, City Hall and Gyeongbokgung subway stations, some exits will be shut from 5 a.m., while starting at 2 p.m., all exits will be closed. Trains will not stop at the stations until as late as 10 p.m., after the concert ends. Buses traveling through Sejong-daero have been rerouted since Friday night, while those traveling on Sajik-ro and Saemunan-ro will be redirected starting at 4 p.m. Saturday. All bus lines will resume services at 11 p.m. Meanwhile, bike rental services and racks within 1 kilometer of the concert venue will be closed until 9 a.m. Sunday. Spec