 The truck has not been located. The South Dakota Highway Patrol is investigating the crash. Authorities in Sioux Falls are investigating a fatal crash that occurred around 9 p.m. on Saturday at East 57th Street and South Rateliff Avenue. Emergency crews responded to the scene where a motorcycle had collided with a car, resulting in critical injuries to the male motorcycle driver. Despite life-saving efforts, the driver succumbed to his injuries at the scene.