LOS ANGELES (AP) — Authorities have identified a woman whose body parts were found at two Los AngelesCounty water treatment plants but there's still no word on how she died.

The Sheriff's Department on Tuesday says the remains are those of 27-year-old Erin Lynn Cruz.

She was last seen alive on Oct. 23 in the La Puente area east of Los Angeles.

The lower and upper halves of her body — minus an arm — were found days later at treatment plants in Bassett and Carson, some 30 miles apart. Another body part was later found at the Carson plant.

Investigators say Cruz's body may have been dumped into the San GabrielValley sewers and been mangled by a pump before wastewater was distributed to the treatment plants.

Homicide detectives are investigating.