A tractor-trailer burst into flames late Tuesday morning when the driver lost control of his rig, which was partially hanging from the side of a highway ramp in far northwest Dallas.
The driver was taken to Parkland Memorial Hospital, but the extent of his injuries was unknown, said Sherry Lopez, spokeswoman for Dallas Fire-Rescue.
The accident was reported at about 11 a.m. on a ramp leading from northbound Interstate 35E to eastbound Interstate 635, also called the Lyndon B. Johnson Freeway.
"His gas tank ruptured as he went over," Lopez said. "The contents of the trailer were on fire and the cab burned up.
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Lopez said firefighters didn't know if any hazardous materials were on board.
"We haven't been able to see his manifest yet," she said.
The flames had been doused by noon, Lopez said, but firefighters were still checking for hot spots and hazardous materials crews were cleaning fuel that didn't burn in the accident.
And, a crane was on the scene to remove the wreckage.
Traffic in the area was snarled.
No other information was immediately available.