Two people were taken to hospital following a crash in the Port Franks area early Tuesday.
Lambton OPP responded to the two-vehicle collision on Lakeshore Road.
Police said the individuals were taken to a local trauma centre to receive treatment for their injuries.
Lakeshore Road was closed Tuesday morning and into the afternoon between Jericho and Northville Roads while police investigated.
The West Region Traffic Incident Management and Enforcement Team (TIME) as well as the Technical Traffic Collision Investigation (TTCI) were assisting in the on-going investigation.
Anyone with information about the crash, or who may have witnessed the collision or has dashcam footage, is asked to call the OPP at 1-888-310-1122.
Should you wish to remain anonymous, you can call Crime Stoppers at 1-800-222-8477 (TIPS) or submit information online at www.sarnialambtoncrimestoppers.org.