A boy is in life-threatening condition after being pulled from a pool in Caledon Saturday afternoon, according to Peel paramedics.

Emergency crews responded to reports of a drowning at a residence on St. Andrews Road, near The Grange Side Road.

Paramedics said a boy was pulled out of a pool without vital signs.

Bystanders performed CPR and the boy had a heart rate when paramedics arrived.

He was transferred to SickKids Hospital in Toronto in life-threatening condition, paramedics said.

The incident is believed to be a tragic accident, according to the Ontario Provincial Police.