CTA Blue Line trains were suspended downtown this morning due to what the agency described as a "medical emergency on the tracks," with a large emergency response in the Loop and streets blocked by Chicago Fire Department trucks and ambulances.⁠ ⁠ According to an alert posted at 8:58 a.m., Blue Line service between Grand and UIC-Halsted was suspended on the tracks near Washington. As a result, CTA said trains were only operating in two sections -- between O'Hare and Grand and between Forest Park and UIC-Halsted. Shuttle buses were being provided.⁠ ⁠ "Consider other service alternatives that may serve your trip, such as nearby bus routes or using buses to other rail lines," CTA said.⁠ ⁠ Photos and video from the scene showed Dearborn blocked northbound at Madison Street, with streets blocked and multiple emergency vehicles present.⁠ ⁠ The CTA did not immediately respond to NBC Chicago's request for comment. No further details were provided.⁠ ⁠ Tap the 🔗 in our bio for the latest inform...