Brian Cassella, Chicago Tribune
Chicago firefighters respond to a person on the CTA Red Line subway tracks May 13, 2015, at State and Lake streets. 
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Service has resumed on the CTA Red Line after trains were rerouted Wednesday morning because of a “medical emergency” involving a person on the tracks near Lake Street, officials said.
Police received a report about the person shortly before 9:20 a.m. According to the CTA website, all Red Line subway trains were rerouted to the elevated lines between the Fullerton and Cermak-Chinatown stations because of the medical emergency.
As of 10:30 a.m., service had resumed on the subway tracks.
