A serious multi-vehicle accident involving at least seven vehicles occurred Wednesday afternoon on Clemson Boulevard (Highway 123) near Seneca, leading to the highway’s closure from Seneca to Clemson. The incident, logged at 6:49 PM, necessitated a multi-agency emergency response including Corinth-Shiloh Volunteer Fire Department, Clemson University Fire and EMS, Seneca Fire, Seneca Rescue, Prisma Health EMS, University EMS, the Oconee County Sheriff’s Office, and the South Carolina Highway Patrol. One individual required a medical flight, while two others were transported to the hospital by ground. Seneca-bound traffic on Highway 123 at Garden Circle was blocked for at least an hour, with one vehicle coming to rest in nearby woods…