Part of Route 28 in Montgomery County closed this morning after a car flipped over, killing one person inside.
Only the left shoulder is getting by on I-95 North between Route 17 and Centreport Parkway.
No details were immediately available about the cause of the crash or possible injuries.
Delays remain after a fatal crash closed the Inner Loop of the Beltway in College Park early Monday morning.
An earlier signal problem followed by a disabled Metro train in northern Virginia is causing delays in both directions.
Trains are single-tracking between Dupont Circle and Van Ness stations, with delays in both directions
All northbound lanes are closed after a vehicle overturned on the roadway.
The two right lanes of the Inner Loop, plus one left lane and the ramp to Route 1 are blocked due to the incident.
There are major delays following a four-vehicle crash near the Prince William Parkway, authorities said.
A medivac unit is responding to the scene of a single-vehicle crash, causing backups of about three miles in both directions.