UPDATE: All lanes open as of 2:12 p.m.

Update: The Dulles Greenway’s westbound lanes from Claiborne Parkway remained closed, and are not expected to reopen until at least 2 p.m. as the Virginia State Police await the removal of 7,000 gallons of diesel fuel from an overturned tanker truck along the Greenway.

Eastbound lanes are open, according to a release from the VSP.

Once the fuel has been transferred to another truck, emergency workers will remove the overturned truck.

Original: An overturned tanker truck snarled westbound traffic early Thursday morning on Route 267. 

As of 10 a.m., Virginia State Police is continuing its investigation into the cause of the accident on the Greenway.

"At this time, one westbound lane is open," Virginia State Police spokesperson Corinne Geller said. "The other lanes will remain closed for clean up until at least 11 a.m."

All eastbound lanes are open.  

At 5:27 a.m., Virginia State Police were called to the scene of an overturned tanker truck in the westbound lane of Route 267/Greenway at exit 5 for Claiborne Parkway.

After the vehicle overturned, it caught fire, Geller said.

The driver, a male, was flown to Inova Fairfax Hospital, Geller said in a release, "for treatment of serious, but non-life threatening injuries."