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.

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

The man is in critical condition.

No arrests have been made.