Shooting on Loop CTA Pink Line train leaves 1 dead, 1 wounded

Two men were shot, one of them fatally, on a Pink Line train in the Loop early Tuesday after they began arguing with a knife-wielding suspect who took a gun from one of them and shot them both, Chicago police say.

The two men, 23 and 44, were riding the train in the 100 block of North Wells Street around 1:20 a.m. when they began arguing with the suspect, police said in a statement.

When the argument turned physical, one of the men pulled out a gun, police said. The suspect then "gained control of the weapon and discharged" it at the two men, according to officials.

The older man was shot in the abdomen and taken to Northwestern Memorial Hospital, where he was pronounced dead, police said. The younger man was taken to the same hospital for a gunshot wound to his wrist, police said. He was in fair condition.

Police said no one was in custody.

Pink, Green, Orange and Brown Line trains were running with delays after an earlier medical emergency near Washington/Wells, the Chicago Transit Authority said in an alert.

The CTA did not immediately respond to requests for comment.

The fatal shooting comes after several high-profile attacks on the CTA. Citing a November attack on a Blue Line train, where a man poured gasoline on a 26-year-old woman and set her on fire, the Trump administration demanded that the CTA implement new security measures or face a cut in funding. After the CTA announced it was adding officers to its volunteer CPD transit detail, the federal government said the plan was insufficient and threatened to withhold $50 million in funding.

This is a developing story, check back for further details.