A NON FMC EE WAS TRAVELING ON THE ACCESS ROAD TOTHE FMC PLANT. APPROX 2MILES OUTSIDE THE MAIN PLANT GATE, THE VEHICLE LEFT THE ROAD ROLLING SEVERAL TIMES. INJURIES TO THE INDIVIDUALS, DRIVER & PASSENGER ARE UNK AS THEY WERE TRANSPORTED TO THE SWEETWATER COUNTY MEM HOSP IN ROCK SPRINGS FORTREATMENT. THIS IS A NON-OCCUPATIONAL ACCIDENT AND IS UNDER INVESTIGATION BY THE SWEETWATER COU