Red line service was delayed Saturday afternoon after downed wires caused a fire on the tracks near the Sheridan station.
The fire broke out about 2:20 p.m. in the 4000 block of North Sheridan, according to Chicago Police and Fire Media Affairs. Power was then cut on that stretch of the line, but service is being resumed as of 5 p.m.
According to CTA officials, some red line trains are operating with residual delays.
No one was injured, authorities said.
Travelers were advised to consider using No. 22 Clark, No. 36 Broadway, No. 147 Outer Drive Express and No. 151 Sheridan buses and Brown Line trains while crews work to restore service.