An assault that sent a 58-year-old Mississauga man to the hospital has the OPP and Muskoka Crime Unit seeking out witnesses.

It happened last Tuesday. Police say that morning between 6:30am and 8:00am there was an altercation between the driver of a grey Hummer SUV and an unidentified vehicle on Southwood Road near Belers Road in Gravenhurst.

Police would like to hear from you if you witnessed the event or the two vehicles in question. You can call Bracebridge OPP at (705) 645-2211 or Crime Stoppers at 1-800-222-TIPS if you wish to stay anonymous.