Merrimack, N.H. — Authorities say a speeding car has slammed into a tollbooth in New Hampshire and burst into flames, killing the driver.

Department of Transportation spokesman Bill Boynton says the car was seen speeding on the Everett Turnpike for several miles Thursday afternoon before it crashed into the booth at an exit off-ramp in Merrimack. He says the car exploded into flames and the driver died.

Boynton says a tollbooth worker escaped without injury and the tollbooth didn't suffer any structural damage.