About 100 passengers were stuck on a Metro train for more than 80 minutes early Sunday morning, the transit agency reported.
A Red Line train experienced brake problems around 12:20 a.m. Sunday just outside the Tenleytown-AU station.
A rescue train was sent to move the broken train, but riders had to wait more than an hour until it arrived. They then walked through the cars to exit and board the new train.
Metro says supervisors boarded the stranded train to make sure passengers were OK while they waited.
The incident isn't the only time Metro riders were stranded recently. On Jan. 30, almost 2,000 people were stuck on the Green Line after smoke from an arcing insulator filled a tunnel near the Navy Yard station during rush hour. About 150 of those passengers evacuated the train by themselves, as throngs of backed-up passengers gathered on nearby streets. Metro apologized for its poor communication to passengers afterward.
It also wasn't the only Metro incident that weekend. Earlier Saturday evening, an out-of-service Metro train derailed between the NoMa-Gallaudet and Rhode Island Island stations as it was leaving the Brentwood rail yard.
No one was injured, but single-tracking led to some delays and crowding in Red Line stations, as it continued past the end of the well-attended Southwest Waterfront Fireworks Festival.
Note: This story has been corrected from an earlier version.