ARLINGTON, Va. - Metro says a train has derailed in northern Virginia and fire officials say one of about 75 passengers on the train is being evaluated for a minor injury.

Metro tweets that the train derailed at the East Falls Church Metro station Friday morning. The derailment is causing delays on the orange and silver lines with no service between McLean and Ballston.

Arlington County Fire Department spokesman Deputy Fire Marshal Peter Porbino says passengers have been unloaded from the train. He says one person who may have a minor injury is being evaluated. The fire department tweets that the derailment occurred at the platform and is being described as minor.