By Mugo Odigwe

CHICAGO (CBS)– A man is in critical condition after he was stabbed on a CTA Red Line train early Wednesday morning.

Police said a 33-year-old man was on the train just after 1 a.m. when he got into a fight with another passenger. The other passenger took out a knife and stabbed the 33-year-old in the chest.

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The man got off the train at North and Clybourn and officers nearby called and ambulance.

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The man is in critical condition.

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No arrests have been made.