A Toronto mother and one of her daughters have died after being pulled from a swimming pool in a Gananoque hotel over the weekend.

Naila Yasmin, 43, was found unconscious in the indoor pool on Saturday along with her two daughters who are 11 and 14 years old. The elder daughter is the one who died.

The 11-year-old daughter remains in Kingston General Hospital with life-threatening injuries.

Witnesses told police they initially saw the mom on the pool deck, supervising her children. Police say their investigation shows that the three were not strong swimmers.

All three were without vital signs when paramedics arrived at the Best Western Country Squire Resort. Paramedics performed CPR for about 30 minutes before transporting the family to hospital.

Yasmin's husband and the couple's two sons were having breakfast at the hotel at the time of the accident.

Police are investigating to determine what happened, but foul play is not suspected.