The mother of four children who authorities say were fatally stabbed in a suburban Memphis apartment complex has been charged in their deaths, a news report said.

Citing a charging document, The Commercial Appeal reports that the woman has been charged with four counts of first degree murder associated with aggravated child abuse, four counts of first degree murder in association with aggravated child neglect, and four counts each of aggravated child abuse and aggravated child neglect or endangerment.

The bodies of the four children were found Friday. The mother was taken into custody, and was questioned Friday night.

Officials have not released the ages of the children, but Shelby County Sheriff's Office spokesman Earle Farrell said deputies responding to the scene called them "babies."

Authorities are plaing a news conference later Saturday moing to update the public.

Resident Patricia Johnson spoke with reporters from her car as she drove out of the neighborhood Friday afteoon. She said she wasn't allowed to leave for two hours as deputies investigated the scene.

She has a child, and said she burst into tears when she heard about the killings.

"I can't fathom that," she said. "What would babies do to make you do that?"

The Associated Press contributed to this report