I-495 tractor-trailer collision shuts down all lanes near Tysons

A tractor-trailer collision on I-495 Northbound near Tysons shuts down all lanes.

No word on the cause of the collision or injuries at this time. Drivers are advised to seek alternate routes. 

According to officials, express lanes are now open. 

Police and EMS are on the scene.

This is a devolving story. Stay with FOX 5 for updates and more information.