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Red Line service in the Loop was disrupted Tuesday morning after someone was struck by a train.
The person was hit around 11:40 a.m. at the Harrison station in the 600 block of South State Street, according to Chicago fire officials.
Authorities extricated the person from underneath the train and took them to Northwestern Memorial Hospital, where they were in critical condition, officials said.
Red Line subway trains operated on elevated lines between the Fullerton and Cermak-Chinatown stations but resumed their normal service by 1:30 p.m., the CTA said.