A Griffon Helicopter from C-F-B Trenton is lending a hand to O-P-P south of Bracebridge.
The Trenton Rescue Centre says the chopper left around 2am to help in the search for a missing woman.
The O-P-P emergency response team and canine units started looking for the woman last night, but after encountering swampy and rough terrain, the Griffon was called in.
