Train No. 1200, scheduled to arrive at Chicago's Union Station at 5:12 a.m., was stopped at the La Grange Stone Avenue Metra station just after 5:10 a.m. after hitting a pedestrian, Metra officials said.
Inbound and outbound trains were stopped at 5:20 a.m., and train No. 1201, which was supposed to leave Union Station at 5:28 a.m., would not operate after the incident.
Train No. 1230, departing Aurora at 7:17 a.m., was also canceled.
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Trains began moving again about 5:50 a.m., but extensive delays are expected.
Western Springs police said they were handling an incident at La Grange Stone Avenue but would not provide any additional information about the condition of the person hit by the train.