(Michael Williamson/The Washington Post)

One Metro rider — Len Biegel — who rides every day from Bethesda to Farragut North, said it was “complete chaos,” at 9:30 a.m. as he and other riders tried to come out of the station.

“It’s only a matter of time before a fight breaks out, or someone has a heart attack,” he said.

He estimated there were 50 people going down on the one working escalator and at least 200 trying to walk up the other two and 100 people waiting for the elevator.

Dan Stessel, Metro’s chief spokesman, said technicians are on the scene.

‘The primary flow of people in the morning is down, so we kept the escalator rolling down and directed folks to the elevator for the ascent,” he said.

Metro has said it plans to replace Bethesda’s escalators with new ones. But that work won’t start until 2014.

At 10:27 a.m., Metro sent a tweet saying there are both an up and down escalator operational at Bethesda, and technicians remain on the scene.

Follow me on Twitter @postmetrogirl.