Rescue personnel responded to two separate crashes in Fond du Lac County Friday morning. The right lane of Highway 151 was blocked at Highway TC near Lamartine following a crash between a semi and a car. The Sheriff’s Office says the car driver received serious but non life-threatening injuries. That crash happened shortly after 5:30am. The northbound lanes of the Highway 151 Bypass in Fond du Lac were closed Friday morning following a one vehicle rollover crash. But when rescue personnel arrived on the scene at about 4:30am on 151 at Highway 23 nobody was there. The roof of the vehicle appeared to be kicked out.