Grey Bruce OPP are looking for anyone who may have witnessed a collision where a pedestrian was hit in Saugeen First Nation.
Police say it happened on Sunday (June 13) at about 10:15 p.m.
They say a male was located and transported to hospital with serious injuries.
OPP have not said which road it happened on, and further inquiries by Bayshore Broadcasting News to OPP and emergency services about the location have yet to be answered.
Investigators are appealing to anyone who may have been in the area at the time of the collision, or may have surveillance or dash camera video footage, to contact police.
If you have information that can assist investigators, please call Grey Bruce OPP at 1-888-310-1122. Should you wish to remain anonymous, call Crime Stoppers at 1-800-222-8477 (TIPS), or leave an anonymous online message at www.crimestop-gb.org where you may be eligible to receive a cash reward of up to $2,000.