Waterloo Regional Police are investigating a multi-vehicle collision which saw four people taken to hospital. Police and emergency services responded to the intersection of Westmount Road North and Benjamin Road around 4 p.m. Saturday. The collision involved a white Ford F-150 and a grey Nissan Rogue. The driver of the Ford F-150 and three occupants of the Nissan Rogue were taken to local hospital with minor injuries. The intersection was closed for several hours during an initial investigation and has since been reopened. The nature of the crash remains unknown with the investigation still ongoing. Investigators said charges are currently pending. Anyone who witnessed the collision or has dashboard camera footage from the area at the time of the incident to call police at 519-570-9777, extension 8856.