But speed restrictions can be found on every train line, also plaguing the Green Line, Brown Line and sections ... of the train system, the CTA slow zone maps show. One area that has slowed ...

Some CTA trains were stopped for over an hour ... No one was injured in the incident. Brown and Purple Line trains were moving again about 8:20 a.m. after the incident, Chicago police said.

The Chicago Transit Authority warned of "major delays" for multiple train lines and urged some ... Service alerts were issued before 8 a.m. for Brown and Purple Line riders, saying "at this ...