Updated: 11/4/2012 5:58 p.m.

CHICAGO (CBS)– The Chicago Transit Authority expected to have full service on the Red Line Monday morning after an eight-car train derailed Sunday afternoon on the North Side.

As a result, Red Line trains were not running between the Granville and Howard stations Sunday night.

“We are working to restore service as quickly as possible,” the Chicago Transit Authority said in an alert issued Sunday evening. “We hope to resume normal service within the next six hours.”

The derailment happened near the Granville station, officials said, and no one was injured.

Firefighters were called to the North Side Red Line station at 1119 W. Granville Ave. about 3:05 p.m.

Chicago Transit Authority spokeswoman Lambrini Lukidis described it as a minor derailment between the Granville and Loyola stations – all of the wheels did not leave the track, she said.

Passengers were able to get off the train when the northern and southern-most pairs of cars were uncoupled from the rest of the train and sent to Loyola and Granville, respectively, Lukidis said.

It’s not clear how many people were on the train.

Service on the Red Line had been suspended between Howard and Addison. The Yellow Line was also suspended and the Purple Line was operating only between Linden and South Boulevard.

As of Sunday night, Red Line trains were only running between the Granville and 95th stations.

On Oct. 1, a southbound Red Line train also derailed while approaching the Granville station.

(Source: Sun-Times Media Wire © Chicago Sun-Times 2012. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)