ST. JOHNS CO., Fla. -

The driver involved in a crash on Race Track Road that hurt four people Friday afternoon has died, according to the St. Johns County Sheriff's Office.

Regina Bilbrey, 45, of St. Johns, died at Orange Park Medical Center, hours after the crash, police said.  Her 9-year-old and 12-year-old children were in the car at the time of the crash and were taken to the hospital in serious condition.

Investigators say one other person was hurt and treated at the scene of the northern St. Johns County crash.

The crash happened about 4 p.m. in the eastbound lanes in the 4100 block of Race Track Road, in front of Durbin Creek Elementary School, at Veterans Parkway.

Rescuers said a car was T-boned by another car, and two victims were trapped inside.

The eastbound lanes were closed for about an hour.

The Florida Highway Patrol and the St. Johns County Sheriff's Office are investigating the crash.