A man was fatally stabbed at a Chicago CTA station early Saturday; police are investigating with no arrests.

A 37-year-old man died from stab wounds early Saturday morning at the Clark and Lake CTA Blue Line station in Chicago’s Loop. Police responded around 2:30 a.m., finding the man with chest and abdominal injuries; he was pronounced dead at Northwestern Memorial Hospital. No arrests have been made, and the motive or suspect remains unknown. The incident caused temporary Blue Line service disruptions, with trains running on a single track until 5:48 a.m. Authorities are investigating, reviewing surveillance footage, and urging witnesses to come forward. The CTA continues normal operations, and no broader threat has been identified.