UPDATE - Monday - 3/10/2013, 10:35 a.m. ET
Metro says it is no longer running trains on a single track on the Blue and Yellow Lines. Residual delays remain.
EARLIER - Monday - 3/11/2013, 9:51am ET
WASHINGTON - There are delays on Metro's Blue and Yellow Lines Monday morning.
The lines are experiencing 35-minute delays because trains are running on a single track between Braddock Road and Pentagon City.
Shortly before 5 a.m., hydraulic fluid leaked onto the tracks at National Airport creating slippery conditions for the trains.
Metro is working to clean up the fluid but there are delays in both directions.
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