Two Modesto teenagers were injured Thursday afternoon when their Isuzu Amigo rolled on Kewin Mill Road near Twain Harte.

The CHP says 15 year-old Timmy Stone suffered major injuries. He was air-lifted to Doctors Medical Center in Modesto. CHP says 18 year-old Driver Ricky Harrison was partially ejected from the vehicle as it rolled and taken to Tuolumne General Hospital for treatment. Investigator says excessive speed on a curve was to blame.