Seven people were arrested Wednesday at a traffic safety checkpoint on 17th Avenue South near Highway 15 in Myrtle Beach, according to Sgt. John Bertang. The checkpoint was conducted between 9 and 11:30 a.m. Forty-five citations were issued _ 14 for driver’s license violations, seven for vehicle registration violations, four for driving under suspension, three equipment violations and 17 insurance violations, Bertang said. Five vehicles were towed from the scene, Bertang said.