Horse euthanized after accident at Louisville World's Championship Horse Show; second consecutive year of tragedy.

A horse was euthanized following an accident at the World's Championship Horse Show in Louisville, Kentucky during a Youth Roadster to Bike event. The horse sustained injuries after contacting a fence surrounding the ring. The rider did not require medical attention. The horse's body will be taken to Lexington for a necropsy to determine the cause of injuries. This marks the second consecutive year of tragedy at the show.