CTA train service was suspended on several lines as the transit agency reported a "track condition" issue and fire department activity during the Thursday morning rush hour.
According to tweets from the CTA, Red Line, Purple Line Express and Brown Line service was "temporarily suspended" just before 7 a.m. due to fire department activity near Belmont.
Significant delays were reported.
Brown Line service was stopped between Southport and Armitage, with shuttle buses available for service from Irving Park to Clark/Lake. Red Line service was halted between Thorndale and Grand.
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Purple Line Express trains were also stopped near Belmont for the same activity. The CTA said Purple Line service was still running from Howard to Linden, however.
The CTA had previously said trains were standing at Belmont due to a "track condition" issue. The agency later said the issues were "at the Clark junction near Belmont Red line."
By 8:50 a.m., Brown Line service was resuming but with residual delays. The CTA urged commuters to "allow extra time."
Red Line trains were operating in two sections between Howard and Thorndale and Grand and 95th and shuttle buses were available between Thorndale and Chicago Avenue.
The Purple line express remained suspended.
"Crews are working to restore normal operations," the CTA said in a statement. "Customers can continue to check alerts on website for latest."
Check back for more on this developing story.