A Riverside couple with 13 children, ranging in age from 2 to 29, allegedly held its youth and adult offspring hostage in their home, binding some of them to beds with chains and padlocks in dark and foul-smelling conditions.

After one of the children managed to escape and call 911, authorities arrived at the house and freed the rest of the siblings, according to the Riverside County Sheriff’s Department. The parents, David Allen Turpin, 57, and Louise Anna Turpin, 49, are now in jail on torture charges.

Early Sunday morning, a 17-year-old girl escaped the Perris, California home and called 911 on a cell phone she found in the house, according to a sheriff’s news release. The teen said her 12 brothers and sisters were being held captive inside the house by her parents and that some of her siblings were bound with chains and padlocks.

Perris police officers and Riverside County sheriff’s deputies then met with the girl. It appeared the slightly emanciated girl was actually 10 years old, according to the press release.

Following a brief interview with the girl, investigators contacted the parents at the home. Investigators found several children shackled to their beds with chains and padlocks in dark and foul-smelling surroundings.

The parents were unable to immediately provide a logical reason why the children were being restrained. Deputies found 12 children inside the house and were shocked to discover that seven of them were actually adults, ranging in age from 18 to 29.

Investigators interviewed all 13 of the children. Sheriff’s officials say the victims appeared to be malnourished and very dirty.

Both Child Protective Services and Adult Protective Services arrived, and the children received food and drinks after they claimed they were starving.

Responders transported the six minor-age children to the Riverside University Hospital System. They received medical examinations and were admitted for treatment. The seven adult children received examinations and were admitted for treatment at Corona Regional Medical Center.

Officers arrested David and Louise Turpin on charges of torture and child endangerment and booked them into the Robert Presley Detention Center. Their bail is set at $9 million each.

Sheriff’s officials request that anyone who has additional information about the case contact Master Investigator Tom Salisbury at (951) 210-1000 or perrisstation@riversidesheriff.org.