5 P.M. Update:

The inner loop of the Beltway has reopened near Rockville Pike. Expect delays to linger in this area as the evening commute gets underway.

3:35 P.M. Update:

One lane has reopened on the inner loop of the Beltway between Old Georgetown Road and the Rockville Pike. Major delays remain.

Earlier:

An accident on the inner loop of the Capital Beltway has shut down all travel lanes near the Rockville Pike. There was a crash involving a tractor trailer, according to the Maryland State Highway Administration.

This post has been updated.