Oklahoma Highway Patrol responded to a deadly crash in Creek County involving a car and several motorcycles.
Troopers say it happened just before 7 Saturday night on Route 66 just west of Slick Road in Kellyville.
59-year-old Gary South of Tulsa was pronounced dead at the scene. Four others were transported to the hospital two of them in critical condition.
Troopers say the cause of the crash is still under investigation.