Three Lebanon residents were transported to Mercy Hospital in Springfield following a two-vehicle accident at 2:50 Thursday afternoon on Missouri Highway O, 4 miles east of Lynchburg. The Missouri Highway Patrol reports that a tractor-trailer driven by 23-year-old Morgan T. Leid of Halstead, Kansas failed to stop at a stop sign, crossing the highway, and was struck by a car driven by 31-year-old Brendon P. Frick of Lebanon. Frick suffered serious injuries; two passengers in his vehicle were also injured. 24-year-old Cheyenne N. Frick suffered serious injuries, and a 4-year-old child sustained minor injuries. All involved were wearing safety devices.