COLUMBIA, Tenn. (WKRN) – Two teenage boys, ages 15 and 17, were killed in a serious crash while on Spring Break in Columbia on Thursday.

The Tennessee Highway Patrol said the car went around a curve on Theta Pike next to Starr Farms when it ran off the road into a concrete culvert around 12:20 p.m.

The car then flipped and caught fire. The driver, who was not wearing a seat belt, was thrown from the car. Both he and the passenger were killed.

“We were in the kitchen and saw black smoke. We looked out the front window there and saw a car upside down fully engulfed in flames,” witness Gary Starr said.

Neither of their names have been released, but officials at the scene told News 2 the 17-year-old was a student at Spring Hill High School and the 15-year-old was home-schooled.

“Nothing is any worse than what we are dealing with today,” Trooper Chris Hannah said. “It cannot get any worse. Having to talk to the parents and then having to see this ourselves as emergency personnel, It just doesn’t get any worse than that.”

Authorities said there is no evidence the driver was distracted, and they are looking into whether or not speed was a factor.

They are also trying to determine if the passenger was wearing a seat belt.

The Maury County Sheriff’s Office and fire department both responded to the scene, as well as the Tennessee Highway Patrol, which is handling the investigation.