FILE - An aerial view shows the home of Silvia Zhang and Guojun Xuan on July 16, 2025, in Arcadia, Calif. (AP Photo/Jae C. Hong, File) LOS ANGELES - A California couple has been arrested on child abuse charges following an investigation into a surrogacy scheme involving at least 21 children ranging in age from a few months to 13 years, authorities said Tuesday. Silvia Zhang and her husband, Guojun Xuan face several counts of child abuse and conspiracy to commit child abuse, accessory after the fact, and dissuading a witness, Los Angeles County District Attorney Nathan Hochman said. This case is unprecedented. It is horrific. And the physical abuse, beating and punishment that these very young children received, is despicable, Hochman said during a news conference Tuesday morning. Prosecutors are seeking a $100 million bail for the couple because of the serious nature of the charges and due to their flight risk potential, Hochman said. They will be arraigned at the Pasadena courthouse later Tuesday. Fifteen children were removed from the couple's opulent home in Arcadia last year after an allegation of abuse, and another six living elsewhere were also located. They ranged in age from 2 months to 13 years, with most between 1 and 3. Police believe Zhang gave birth to one or two of the children while the rest were born by surrogate. Hochman said the couple set up a surrogacy agency that they operated from their home and used that agency to hire surrogates throughout U.S. The house could only be described as a house of horrors for these incredible young children, Hochman said. Video shows nannies abusing children Zhang and Xuan were first arrested in May 2025 after a hospital reported that their 2-month-old infant had a traumatic head injury, the result of a nanny at the home violently shaking the baby, according to Arcadia police. Arcadia police did not file charges at the time, in order to finish a full investigation, they said. Hochman said the couple set up three rooms they called learning centers, where the children spent several hours a day sitting at #click2houston #crimewatchhouston