Service was running normally on the Red Line tracks Monday after a track fire caused injuries and delays Sunday evening.
At least 19 people were taken to area hospitals-- five in critical condition -- after the extra-alarm fire erupted in the Red Line subway on the Near North Side.
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CTA spokeswoman Catherine Hosinski said a “small fire” started on the tracks near the Chicago Avenue station and power was removed about 5:10 p.m. The fire was extinguished “within minutes,” she said.
But investigators still aren't sure what caused the blaze. Fire officials said sometimes summer heat can ignite railroad ties.
Red Line subway trains had been rerouted to the elevated tracks between the Fullerton and Cermak-Chinatown stations because of fire department activity near the Clark/Division station. But now that the investigation is over, lines are moving.
Nearly all of the people taken to the hospital for smoke inhilation have been released. Just one 10-year-old boy remains at Children's Memorial Hospital for observation.
Published at 7:42 PM CDT on Jun 20, 2010 | Updated at 7:05 AM CDT on Jun 21, 2010