Ontario's Special Investigations Unit are looking into the death of a Kincardine man.
South Bruce OPP were called to a home on Side Road 10 and South Line around 4:30 early Wednesday morning about a domestic incident.
Officers were given information that led them to another residence at Lake Range Drive and Concession Road 10 where they spoke to a 45-year-old man and then left.
Around 8:30 that morning, police, fire, and paramedics were called to the second house where the man appeared to be in distress, was administered CPR, and was taken to hospital where he was pronounced dead.
The SIU have assigned four investigators and one forensic investigator to the case.
They are asking anyone with information to contact the SIU.