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CHICAGO -- A man was taken to a hospital after he was shot on a CTA Green Line train in Chicago's West Town neighborhood Friday night, police said.

It happened as the train was pulling up at a station in the 1600 block of West Lake Street at about 7:20 p.m.

Police say the shooting happened after a verbal altercation turned physical.

The victim sustained a gunshot wound to the upper left shoulder and was transported to Stroger Hospital in serious condition.

Police are questioning two persons of interest.

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