CAR SAFETY SEAT WAS STRAPPED IN MIDDLE ROW ON PASSENGER'S SIDE SEAT. WHEN VEHICLE WAS INVOLVED IN A PASSENGER SIDE COLLISION IT CAUSED VEHICLE TO ROLL, AND SEAT BELT, THAT HELD CAR SAFETY SEAT, UNBUCKLED WHILE VEHICLE WAS ROLLING OVER.*AK THE TWO YEAR TODDLER WAS INJURED DURING THE ACCIDENT. *YH