Photo by PoPville flickr user Barbara.K

From WMATA:

Normal Blue and Orange line service has been restored for the Wednesday morning commute following a minor derailment last evening near Rosslyn Station.

Metro crews successfully re-railed the wheels that had come off track and, working through the night, made repairs and tested the track and switch equipment near the location of the incident.

Incident Background

Shortly after 7 p.m. yesterday, one set of wheels on the first car of a Franconia-Springfield-bound Blue Line train derailed as the train was departing Rosslyn Station. There were no injuries aboard the train, and all passengers were safely offloaded from the train to the platform in less than 10 minutes. Metro estimates that there were approximately 1,000 passengers aboard the train.

The cause of the incident remains under investigation.