Waterloo Regional Police are investigating a pedestrian collision and assault in a Kitchener parking lot near Weber Street East and Fergus Avenue.
The incident occurred just before 8 p.m. Monday when a pedestrian was struck by a Dodge Durango and became trapped underneath the vehicle.
Police say the driver was attempting to help the injured pedestrian when an unknown man allegedly assaulted them before fleeing the scene.
The pedestrian was freed and transported to an out-of-region hospital with serious injuries. The driver also sustained non-life-threatening injuries.
The investigation remains ongoing.