Updated

Metro says a train has derailed in northern Virginia and fire officials say two of about 75 passengers on the train are being evaluated for minor injuries.

Metro spokesman Richard Jordan says two cars derailed at the East Falls Church Metro station platform Friday morning, but the train is upright. 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 Corbino says passengers have been unloaded. The fire department tweets that two passengers were evaluated for minor injuries.

Jordan says work is being performed on the other track in the area as part of Metro's maintenance effort and trains have been using just one track there.

He says the cause is under investigation.