GRAND RAPIDS, Mich. (AP) - Two people have been struck by a car and killed during a hit-and-run crash on a western Michigan street. Grand Rapids police say a preliminary investigation shows the man and woman, both age 56, were walking within a crosswalk after 11 p.m. Saturday when they were struck by a car which drove through a stop sign. The victims were pronounced dead at the scene. Both were Grand Rapids residents. Their names were not immediately released. A tip later led police to the driver of the car who was arrested Sunday morning.