(CNN) -- A mom in Southern California is facing murder charges after her three daughters were found dead in their Torrance-area home, the Los Angeles County Sheriff's Office said Tuesday.
The children's ages range from 2 months to 3 years.
Family members told sheriff's deputies that the mother, 30-year-old Carol Coronado, had killed her children.
CNN affiliate KTLA reported that the children were found lying in a pool of blood on a bed with their mother. She was naked and holding a knife, investigators told KTLA.
The discovery was made by Coronado's mother, who had stopped by to visit her granddaughters, the affiliate said.
Coronado was arrested and taken to a local hospital for examination before being taken to the sheriff's station in Carson for booking, a sheriff's statement said.