Police activity was reported at the Jackson station in the Loop. Blue Line trains were running between O'Hare and Damen and between UIC Halsted and Forest Park. At about 11 a.m., the CTA said trains were running with residual delays.
[Service Disruption] Blue Line service has been temporarily suspended between Damen and UIC Halsted due to police activity at Jackson. More: https://t.co/gb3lQGmUBu— cta (@cta) January 6, 2020
[Service Disruption] Red Line subway trains are rerouted to the elevated lines between Fullerton and Cermak-Chinatown due to police activity at Jackson. More: https://t.co/zXxG17evUn— cta (@cta) January 6, 2020
CTA Red Line trains were also rerouted to the elevated tracks in the Loop.