Attempts to resuscitate the boy, both on site and at a hospital, failed.
Châteauguay police have opened an investigation after a 4-year-old boy drowned in a backyard pool in a residential section of Beauharnois Thursday evening.
Police said on Friday that first responders received a report of child in cardiac arrest around 8:30 p.m. The child was found in an above-ground pool behind a residence.
Attempts onsite to resuscitate the child failed and he was taken to a local hospital, where he was declared dead.
The child’s death is also being investigated by the Quebec coroner’s office.