CHICAGO (CBS) — CTA Purple and Red line trains are operating Friday with residual delays after an earlier fire near Wilson.

Fire crews worked to put out the a small fire near Wilsen that affected Linden-bound express trains.

The trains were standing before 5 p.m., but crews worked to get service running again at about 5:15 p.m., according to the CTA.

There is no additional information at this time.