7:25 p.m. Update: Metro chief spokesman Dan Stessel said, “The train [at Foggy Bottom] couldn’t move because the brakes were activated.”

However, he said he did not know what caused the malfunction

Stessel added that one of the rail cars on the train was still in the tunnel when the incident occurred. Train doors open, all or nothing, he said, so the operator had to open the door so passengers could walk up to another rail car and then disembark at Foggy Bottom.

About 30 minutes after the incident at Foggy Bottom, a medical emergency occurred at Metro Center aboard a train headed to Vienna. Riders pulled the emergency door release, Stessel said. The train stopped, and emergency personnel eventually arrived. Passengers were off-loaded at Metro Center.

Original post: Metro said it has a disabled train on the Orange Line at the Foggy Bottom station, and passengers tweeted that the train operator had to come and “manually open” doors to let them off.

The incident happened about 5:30 Friday evening, and crews had to use another train to push it out of the way and then get it to the Alexandria rail yard.

Dan Stessel, Metro’s chief spokesman, said the train had a “brake problem” and was an eight-car train headed in the direction of New Carrollton.

It was off-loaded at Foggy Bottom. He said he was not aware of a train operator having to manually open doors for passengers.

He said passengers should expect delays until 6:30 p.m. to New Carrollton and Largo because of the incident.

In the past three weeks, Metro has had two separate incidents in which friction rings, which are part of the brake assembly of a rail car, have fallen off cars. The incidents remain under investigation.

Stessel said Friday evening at 6 p.m. that “this is not friction-ring related.”

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