Provincial police are searching for a Fort Frances man, presumed drowned, at a lake north of Fort Frances.
Police says the man was operating a trail groomer late Wednesday night when it broke through the ice on Manitou Lake.
Manitou Gold, a mining exploration company doing work in the area, says the man was working as a service provider to the company and the incident took place near its exploration project.
His name has not been officially released.
An OPP dive team is expected to arrive on scene today.
Ontario's Ministry of Labour has also been called to investigate.
