The Dupont Circle Metro Station reopened after 2 p.m. Saturday after being closed due to police activity for more than an hour.
Police said they received a call about a bomb threat at 12:58 p.m.
Trains passed through the station but didn't stop as police conducted a security sweep of the station.
Metro requested bus service to shuttle Red Line riders between Dupont Circle and the Woodley Park and Farragut North stations.
Stay with NBCWashington.com for more information as it becomes available.