By Mugo Odigwe

CHICAGO (CBS)– Shots were fired on a CTA bus during an attempted robbery in the Park Manor neighborhood Sunday night.

Around 10:30 p.m., a man tried to rob a 21-year-old man on the bus, near 71st Street and Michigan Avenue. Police said the victim pulled out his own gun and shot at the man attempting to rob him.

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The offender then shot the victim in the chest and they both got off the bus.

Police arrived on the scene and arrested the suspect.

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The victim was taken to a local hospital in critical condition.

Police said both men did not have a conceal carry license for the guns they had.

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There were other passengers on the bus at the time of the shooting. No other passengers were injured.