Police detectives are looking into the death of a 22-month-old boy at a home in Atwood, south of Listowel.
Perth County OPP say they were called to the Main Street home around 4:30 a.m. Monday.
They had been notified of a seriously injured child at the property.
The child was taken to hospital, where he was pronounced dead.
OPP say a forensic examination of the child took place Monday in London.
No further information was immediately available.