Janesville police are investigating a fatal motorcycle crash on the city’s south side. Police responded to the crash at the intersection of Center and Burbank Avenues a little before 7:00 p.m. Sunday. Officers say the preliminary investigation indicates a motorcyclist was traveling southbound and hit a truck. The driver and passenger on the motorcycle were taken to a local hospital, where the driver was later pronounced dead. The Rock County Sheriff’s Office is assisting with reconstruction of the crash scene. The name of the victim will later be released by the Rock County Medical Examiner’s Office.