SANTA CLARITA, Calif. (AP) _ The bodies of four young girls were discovered Wednesday in a tract home by sheriff's deputies responding to a mother's 911 call, authorities said.

A woman believed to be the girls' mother, and her 14-year-old son were taken to a nearby hospital for treatment of smoke inhalation, authorities said.

The girls were ages 6, 7, 10 and 12, said Deputy Cruz Solis.

Homicide detectives were called to the Cherry Creek Drive home after deputies responded to a 911 call from a woman who said her house was full of smoke and she couldn't wake her sleeping children.

``Anytime there is a death when it involves this kind of fire, homicide investigators are called in,'' said Sgt. David Halm.

The woman and her five children moved into the single-story house five months ago, neighbors said.

The house showed no signs of fire damage.

Neighbors said they smelled smoke, but saw no flames coming from the home.