Police north of Toronto say a 20-year-old woman is in life-threatening condition Saturday after being pulled from a backyard swimming pool.

York Regional Police arrived at a residence in Newmarket, Ont. just before 5 p.m. on June 16. They said a four-year-old girl called 911 after her babysitter “had accidentally gone into the deep end of the swimming pool and was unresponsive.â€

The woman was rushed to hospital.

The child was not injured, police said, and the incident is not considered suspicious.

Anyone with information is asked to contact police at 1-866-876-5423, ext. 7241, or Crime Stoppers anonymously at 1-800-222-tips.