Authorities say one person has been killed after an all-terrain vehicle and motorcycle collided in southwest Missouri.

The Missouri State Highway Patrol says 29-year-old Stacia Barnett was pronounced dead at the scene early Sunday in Lawrence County. The crash happened just south of Marionville when her ATV collided with the motorcycle. The driver of the motorcycle was taken to a Springfield hospital with serious injuries.

Neither person was wearing a helmet.

More From AM 1050 KSIS