A tanker truck carrying approximately 7,000 gallons of diesel fuel overturned in a crash on the Dulles Greenway.
The crash happened shortly before 5:30 a.m. in a westbound lane near Exit 5/Claiborne Parkway, spilling more than 400 gallons of fuel.
Another pool of diesel fuel was found later in the morning in a grassy embankment area on the side of the road, reported NBC4's Megan McGrath.
The driver was flown to Inova Fairfax Hospital with serious but non-life-threatening injuries, said Corinne Geller of Virginia State Police. He is a 52-year-old man from Strasburg, Va.
Crews worked into the afternoon to safely transfer the remaining fuel into another tanker. All three westbound lanes reopened shortly after 2 p.m.
The eastbound lanes of the Greenway reopened around 6:50 a.m.
Authorities are investigating the cause of the crash.
The incident came just a day after another tanker overturned and caught fire, this one on Interstate 95. The driver of that tanker, Edwin H. Hall, 59, died in the fire.
