The robbery happened on a train in the Loop's 100-block of West Lake Street, near the Clark/Lake station, on Sept. 26 around 10:50 p.m., police said.
Police released photos of the two suspects and asked anyone with information to contact them at 312-745-4447 or submit an anonymous tip at CPDTIP.com and use reference RD: JJ429981.
Further information was not immediately available.
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