Waterloo Regional Police are investigating a serious collision in Waterloo involving a vehicle and a mobility scooter that sent an elderly woman to hospital. Emergency services responded to the intersection of University Avenue East and King Street North before noon Wednesday following reports of a crash involving a Nissan and a mobility scooter. The operator of the scooter, an 84-year-old Waterloo woman, was taken to an out-of-region hospital for treatment. Police have not released the extent of her injuries. The driver of the Nissan, a 63-year-old Kitchener woman, was not injured. The intersection was partially closed for about an hour while police investigated. Anyone who witnessed the collision or has dashcam footage is asked to contact police at 519-570-9777, extension 8856.