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Chicago trains collide

Emergency personnel investigate the scene where dozens of people were taken to hospitals after a CTA train ran head-on into another train that was stopped at a Blue Line station in Forest Park, Illinois, Monday, September 30, 2013. (Chuck Berman/ Chicago Tribune/Getty Images)

Chicago trains collide

A Chicago Transit Authority train collided with a standing train at a station in a western suburb of Chicago during Monday morning's rush hour, leaving at least 33 people injured, according to an official with the CTA.

The collision happened at about 7:45 a.m. local time at the ground-level Harlem Station in Forest Park west of Chicago, CTA spokeswoman Catherine Hosinski said. (Reuters)