The Ontario Provincial Police hope someone living on Manning Road between County Road 34 and North Talbot Road will help them after a two-vehicle crash in Lakeshore.
Police would like to view security camera footage after the crash involving a vehicle and a tractor-trailer just before 8 p.m. on Tuesday.
They're also looking for witnesses.
The driver and a passenger in the vehicle were taken to the hospital with non-life-threatening injuries.
The crash shut that section of Manning Road down until around 7 a.m. Wednesday morning.
Anyone with information can contact the OPP at 1-888-310-1122.