The Ontario Coroner is investigating after a 10 month old baby boy died from suspected carbon monoxide poisoning.
Police and EMS were called to a home in Barrie yesterday morning just after 8:30.
Police say the boy's mother is in critical condition in hospital and his two year old sister is in stable condition.
They say the woman's husband came home to find his wife and baby boy unresponsive and his daughter alert, but showing signs of CO poisoning.
No names have been released.