Update at 4:00 p.m. — The disruption has been cleared, WTOP reports.
Update at 3:35 p.m. — There’s smoke on the tracks between Ballston and East Falls Church, Metro spokesperson Cherry-Ann Santos confirms. Currently, there is no impact on service, Santos says. However, riders are being told to expect delays on the Orange Line.
A possible fire has been reported on the Orange Line Metrorail tracks that run parallel to I-66, near the North Harrison Street overpass.
Passersby report white smoke coming from the tracks. Arlington firefighters are en route.
There’s currently heavy traffic on I-66 near the scene.