Utah Highway Patrol
Tracks from a vehicle that rolled on Interstate 15 early Saturday can be seen in the front left corner.

COVE FORT, Millard County — A 12-year-old Lehi girl was hospitalized in extremely critical condition Saturday after she was thrown from the car she was riding in during an accident.

Fallon Nicholson, 12, was taken to Primary Children's Hospital. Two others, 39-year-old Rachelle Nicholson, who was driving, and 17-year-old Felicia Nicholson, a front-seat passenger, were being treated at Fillmore Community Medical Center for injuries sustained in the single-car accident.

The vehicle was traveling south on I-15 about 7:15 a.m. Saturday when it drifted off the left side of the road and into the median, according to Utah Highway Patrol Sgt. Jacob Cox. He said the driver over-corrected, swerving back to the right, causing the car to roll.

Fallon, who was lying down unrestrained in the back seat, was ejected as the car rolled and the vehicle landed on top of her, approximately 25 feet from the road, Cox said. Witnesses stopped and were able to lift the car off the girl.

Felicia told police she woke up lying partially on the trunk of the car, through the rear window, Cox said. Investigators were still working to determine the cause of the accident.

—Wendy Leonard