Ottawa Police are investigating a single-vehicle crash just south of Pakenham.
Emergency crews were called to Panmure Road around 10:30 p.m. on Thursday for a single-vehicle crash.
One man was pronounced dead at the scene, his name has not been released.
Ottawa Police Collision Unit investigators remained on scene on Friday morning to try and determine the cause of the crash.
Panmure Road is closed from Upper Dwyer Hill Road to 12th Concession South Pakenham.