A father and his young daughter are in hospital this afternoon following a drowning incident at a Mississauga high-rise. 

A man in his 40s and a three-year-old girl were pulled from an indoor swimming pool at 80 Absolute Ave., a condo complex near Hurontario Street and Burnhamthorpe Road East, at about 10:30 a.m. according to Peel Regional Police. 

An officer performed CPR on the man, later identified as the girl's father, at the scene. He was sent to hospital without vital signs. He was later upgraded to stable but critical condition. 

The girl regained consciousness on the scene — a bystander had already resuscitated her by the time emergency personnel arrived — and was also sent to hospital to be checked out, say police. 

"She was alert, conscious and breathing when we arrived," Peel Regional Police Const. George Tudos told CBC News. 

Police are reviewing surveillance video as part of their investigation, trying to piece together what happened. 

Both victims had been underwater for several minutes and weren't wearing life jackets.

The pool area is only open to people who live in the complex. Residents say the safety rules are clearly posted. 

"There are caution signs in that it says no lifeguards on duty. There are caution signs that say that children must be supervised and there are life preservers," said resident Magda Milczarski. 

With files from Ivy Cuervo