Authorities have released details of a moped/car accident near the Carroll High School yesterday (Wednesday) afternoon that left one driver injured. At approximately 3:19 p.m., the Carroll Police Department and Carroll County Emergency Medical Services responded to the scene near the intersection of Grant Road and Suncrest Drive. Authorities say 15-year-old Tristan Bradley Smith of Carroll was traveling southbound on a 2020 TMEC Ryker moped and failed to stop for stationary traffic ahead. Smith collided with the rear of a 2005 Pontiac Bonneville, driven by 16-year-old Kaisen Louann Stypa of Carroll. Smith was transported to St. Anthony Regional Hospital by Carroll County EMS with serious but non-life-threatening injuries. Damage to the moped was estimated at $2,000.