Update, 9:00 a.m. Limited service continues on the Gold Line with trains sharing the northbound track between Del Mar and Chinatown Station. Bus shuttles have been extended from Fillmore to Little Tokyo/Arts District Station to help supplement service. For more service updates, please check back here at the Source or on Twitter at @metrolaalerts and @metrolosangeles.

Update, 7:55 a.m. Major delays continue. Gold Line trains are now sharing the northbound track between Del Mar and Chinatown Station. Some bus shuttles continue to operate between Fillmore and Southwest Museum station to help supplement service.  If delay verification is needed, please call Customer Relations at 213.922.6235 or fax 213.922.6988.

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From last night:

•MAJOR DELAYS on the Gold Line are expected Thursday morning with no train service between Fillmore Station in Pasadena and Southwest Museum Station due to damage to overhead wires in South Pasadena. Buses will replace train service in that segment.

•Trains will be running between Southwest Museum, Union Station and East Los Angeles. Expect minor delays on this segment of track with trains not adhering to the regular schedule.

Please plan for extra travel time as there will be major delays and crowding through impacted area. Or make other commute arrangements. If possible, consider taking the bus, driving and carpooling or bicycling. Customers boarding at Lake Station to DTLA may consider Metro Express 485. Customers boarding at Sierra Madre Villa Station to DTLA may consider using the Metro Express 487.

Those traveling in the Highland Park area may want to consider alternative bus service. For customers at Southwest Museum or Highland Park, consider using Metro Local 81 instead on nearby Figueroa.

We will continue to provide updated information about service here, as well as on Twitter at @metrolaalerts and @metrolosangeles.

The damage occurred about 10 p.m. Wednesday night when wire damage caused a southbound Gold Line train to halt in South Pasadena. After the wires were de-energized, passengers aboard the train were safely evacuated. Repair work began shortly thereafter and continued through the night.