CTA: Service restored Blue Line to Forest Park, some delays

Image of the CTA's train system. (AP Photo).

August 7, 2012 2:25:34 PM PDT
Some southbound CTA Blue Line trains had delays Tuesday afternoon after some track maintenance equipment derailed.

The maintenance equipment derailment happened around 3:30 a.m. between the Forest Park and Harlem stations.

Service was shut down until about 2:30 p.m.

Shuttle buses were used to carry passengers between the stations.

The cause of derailment is under investigation.