FILLMORE -- A crash involving two tractor-trailers has shut down Interstate 15 northbound just north of Fillmore.
According to the Utah Highway Patrol, one semi rear-ended another and caught fire. That fire then spread to the other semi fire.
The driver in the rear semi was airlifted to University Hospital's burn center in serious condition.
The fire is now out and the road has been cleared.
UHP will continue to investigate this accident; citations are pending.
Eyewitness video courtesy Nate Harris