A 59-year-old man from Nepean has died following an all-terrain vehicle collision in Addington Highlands on Tuesday afternoon.

Ontario Provincial Police said officers responded to the single-vehicle crash on Deer Rock Lake Road shortly before 5 p.m.

The man, who was the ATV’s only occupant, was taken to a nearby hospital, where he was pronounced dead.

Investigators determined that the victim was not wearing a helmet at the time of the collision. The circumstances surrounding the crash remain under investigation.