A 3-year-old girl died after she was found in the swimming pool of a home northwest of Tucson late Saturday.

The girl and her parents were among several people at a backyard gathering in the 8200 block of North Equator Loop, near North Oldfather and West Cortaro Farms roads, said. Capt. Adam Goldberg a spokesman for Northwest Fire District.

The call to 911 was made at 11:43 p.m. after the girl was pulled from the pool. Bystanders started CPR and an emergency crew arrived within four minutes.

The girl was taken to a hospital where she died.

There was no barrier around the pool and the girl was seen about 15 minutes before she was spotted in it, Goldberg said.

The Pima County Sheriff’s Department is investigating.

The drowning, the first in Pima County in 2013, occurred the same day as a near drowning on Tucson's east side.

In that incident, 4-year-old boy nearly drowned at an apartment complex swimming pool.

A resident of the complex in the 6100 block of East Pima Street called 911 at about 6 p.m. requesting help. Fire crews arrived to find the child with blue skin, coughing and crying, Tucson Fire officials said.

The boy was likely underwater for about a minute, officials estimated. His medical condition was not available Sunday.

Senior Editor, News, Arizona Daily Star, Tucson, Az.