A 6-year-old girl wearing only a diaper was found chained to a bed in a filthy home, and her mother and grandfather were arrested, authorities said.
Acting on a tip from an anonymous caller, Riverside County sheriff's deputies found the girl Tuesday in a house filled to the ceiling with trash and feces.
"Officers stepped into the house and were immediately overcome by the stench of trash from the floor to ceiling," police said.
Deputies found the emaciated girl in a filthy bedroom, wearing a diaper and tethered to a bedpost by a thick chain attached to a harness around her waist.
The girl curled up and cowered in a corner when deputies opened the bedroom door, police said.
"The child was not able to speak. . . . She was able to moan and make small sounds," authorities said.
The girl's mother, Cindi Sue Topper, told authorities her daughter had been chained to the bed off and on for five years, she said.
Ms. Topper, 39, and the girl's grandfather, Loren Bess, 76, were arrested and booked on one count of felony child endangerment.