A 74-year-old Woodstock resident was killed in a four-vehicle crash on Highway 403 in Brant County on Wednesday.
Two passenger vehicles and two commercial vehicles were involved, say police.
Four people were taken to hospital where the Woodstock resident was pronounced deceased, Brant OPP said in a media release Friday night.
The investigation is ongoing by OPP West Region Traffic Incident Management Enforcement unit and police say charges are anticipated.
Police are turning to the public for assistance with the investigation. Those with information or with dash cam footage of the area at the time of the crash are asked to contact the OPP at 1-888-310-1122.