Overview

• A medical emergency on the Blue Line tracks at about 5:50 a.m. suspended service between Damen and Racine, splitting trains into O’Hare–Damen and Racine–Forest Park segments.
• Shuttle buses ran between Damen and LaSalle to bridge the service gap while crews cleared the tracks and restored full Blue Line operations.
• The Yellow Line in Skokie faced significant delays due to a shortage of available train operators.
• CTA advised commuters to use nearby bus routes or transfer to other rail lines during disruptions.
• The agency said staff are working to restore normal service as quickly as possible and urged riders to allow extra travel time.