Normal service resumed on Metro's Blue Line Wednesday morning after a train derailed near Rosslyn last night, creating a frustrating commute home for some riders.
Metro investigators still are trying to determine what caused the derailment. Metro officials met Wednesday afternoon.
There were no reported injuries.
They have not found any obvious problems with the rail car or the track. But nothing was said about the operator.
"Obviously we are trying to figure out what caused this to happen last night," Philip Stewart, a Metro spokesperson, tells ABC7 News. "Right now we don't have an answer for that."
Metro pulled the derailed car out of service to examine it.
Investigators determined the tracks are safe. But with no definitive cause of the derailment some passengers are on edge.
Metro says any delays on the Blue or Orange Lines Wednesday were due to previously scheduled maintenence, not from last night's derailment.
The transit agency says crews completed repairs early Wednesday and that trains are running as scheduled.
Metro says no one was hurt when a set of wheels from a train car went off the tracks, prompting an evacuation.
"Horrible. Not a good experience," said Pilar Torres, who was aboard the six-car train headed for Springfield when the wheel set of the front car went off the tracks around 7 p.m.
"We were just leaving the Rosslyn station, and all of a sudden the train started shaking," Torres said.
The incident caused Orange Line and Blue Line trains to single-track between Foggy Bottom and Clarendon/Arlington Cemetery with delays in both directions.
All passengers were safely unloaded from the train
Immediately following the incident, trains turned at the Foggy Bottom, Clarendon and Arlington Cemetery stations. Service was temporarily suspended between Arlington Cemetery and Foggy Bottom before single-tracking began.
"My guess is it wasn't switched for the proper line and it derailed," said Metro passenger Jami Montgomery.
Passengers told ABC7 News that before the train pulled out of the station, the driver announced that there were switching problems ahead, but drove on anyway.
By 10:50 p.m. Tuesday, the train was back on the tracks.
More than an hour and a half after the incident, a long line of people waited for a shuttle to arrive at the Foggy Bottom Metro.
The scene at Foggy Bottom and many other stations on the Orange and Blue Lines was chaotic, and few people knew where to go or which trains were running.
"You should have seen the massive flood of people coming out, the trains going in one direction and then not; it was interesting," said Metro rider Matt Jacob.