Yihyun Jeong, and Andrew Romanov

A woman died and a baby was in serious condition at a hospital Thursday afternoon following a double shooting in west Ahwatukee, a Phoenix police spokesman said.

Phoenix police on Thursday night were still trying to identify the pair and confirm their relationship, as well as find the shooter.

Sgt. Jonathan Howard, a Phoenix police spokesman, said a neighbor heard the cry of a baby and went to investigate at about 3:30 p.m.

Howard said the neighbor found the woman and baby bleeding on an unpaved footpath in a residential area near 18th Avenue and Pecos Road.

Both the woman and baby were taken to the hospital, and the woman was pronounced dead there, Howard said. The infant, a female who appeared to be younger than 12 months old, had been shot in the leg and was in serious condition at a hospital, Howard said.

No weapon was found at the scene.

A Phoenix Fire Department official said officials at the scene assumed the victims were mother and child. Howard said police hadn't confirmed the relationship or whether they lived in the area, as the woman had no identifying information with her.

"This is a traumatic event," Howard said. "We are working to quickly follow on any leads that we have."

EDITOR'S NOTE A previous version of this article referred to the woman and baby as mother and child. Authorities now say they are unsure of the relationship.