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The Washington Monument elevator was back in service Friday morning, after stalling Thursday evening with 16 people aboard.

D.C. firefighters were called to rescue 16 people from the stuck elevator about 6:45 p.m. Thursday. Rescue workers were able to bring the elevator, which was stuck about 490 feet above ground, to the floor, but a group of people were stranded at the top of the monument and had to walk down, said Pete Piringer, a fire department spokesman.

National Park Service spokesman Bill Line said the elevator was back in service when the monument opened to the public Friday morning at 9 a.m.