This post has been updated.

A day after a fatal tanker truck crash in Fairfax County, another truck carrying 7,000 gallons fuel overturned and caught fire in Loudoun County.

Thursday’s crash happened on the Dulles Greenway in Ashburn, at Shreve Mill Road, around 5:25 a.m.

Virginia State Police said the driver of the truck, a 52-year-old Strasbourg, Va., man, was transported by helicopter to Inova Fairfax Hospital. Police described the injuries as serious but not life-threatening.

Investigators are still trying to piece together what caused the crash, police said.

Fire crews have extinguished the blaze, but the investigation is expected to cause traffic delays this morning. Stay with Dr. Gridlock for the latest traffic information.