Paris Hilton is being held at a treatment center in a downtown Los Angeles jail hours after being ordered her to serve the remainder of her sentence behind bars, L.A. Sheriff Lee Baca confirmed in a press conference Friday afternoon. During her previous jail time, Hilton had been at the Century Regional Detention Facility in Lynwood, Calif. Currently, the heiress is in custody in a special section of the Twin Towers Correctional Facility. Sheriff Baca also announced that Hilton's sentence, which was originally 45 days, is now back to a minimum 23-day sentence. Earlier Friday, Hilton was taken from court screaming and crying after Superior Court Judge Michael T. Sauer ordered her back to jail. "It's not right!" Hilton, 26, said as deputies approached her in the courtroom. She also called out to her mother in the audience: "Mom!" Kathy Hilton, accompanied by Paris's father Rick, answered: "Honey!" Hilton's screams echoed in the courtroom's internal hallway as she was escorted out. As the courtroom began to clear, Kathy draped her arms around her husband, who tried to console her. Sheriff Baca said Friday that while Hilton was imprisoned for three days at the Century Regional Detention Facility, her "medical condition had been deteriorating," though he did not reveal the nature of the ailment. He did say, however, that Hilton had been on medication prior to being jailed, but was not taking any while she was imprisoned. Holding a one-page medical evaluation, he said: "This is the evidence that this lady has some severe problems." Friday morning, Hilton entered the courtroom at 11:00 a.m. wearing a gray sweater, gray pinstripe slacks and looking disheveled with her hair in a messy ponytail. Hilton cried and trembled throughout the hearing. She also clasped her hands in prayer several times and turned to her parents seated behind her in the courtroom and mouthed, "I love you." The judge's decision to send Hilton back to jail came after hearing arguments from both the L.A. City Attorney and Hilton's lawyers. Judge Sauer ruled that because the sheriff's department had not adequately submitted medical records supporting the reasons behind Hilton's transfer, she should be returned to jail. TMZ.com reports that Hilton's lawyer plans to appeal the ruling, but no paperwork has been filed yet. Court spokesman Alan Parachini said after the hearing that Judge Sauer hadn't bought the sheriff's "medical condition" rationale for sending Hilton home. "What he said was, on the record, that he'd seen no evidence, no documents to support the contention that there was a medical condition." Details of Hilton's alleged condition were not released in court. Friday afternoon Sheriff Baca said: "We've been overruled by the judge, I accept that, and we'll keep her in county jail." He also denied giving her preferential treatment, saying that her three-day incarceration was more than what most low-level offenders serve. "Let's not make a judicial football of this woman," the sheriff concluded. "I'll keep her at the better facility, and we'll will watch her behavior." Earlier in the day, a sheriff's car picked Hilton up at her home and took her to court for the hearing. As a swarm of media watched, Hilton parted ways with her parents, and her mother told reporters: "It is what it is and it's in God's hands now." She added: "It's out of our hands. There's nothing we can do." Asked how her daughter was faring, Kathy said earlier, "She's doing the best she can." Hilton was seen being handcuffed before getting into a police cruiser and was photographed crying in the backseat. As the gates of the driveway opened, the scene was pandemonium, with the officers on their bullhorns and Hilton's fans screaming. Friday's proceeding was granted by Judge Sauer after the Los Angeles City Attorney requested an emergency hearing to demand that the Sheriff's Department put Hilton back in jail. City Attorney Rocky Delgadillo had accused the department of disobeying the judge's original sentencing orders, which explicitly forbade electronic monitoring. Yet due to an undisclosed medical condition, Hilton was released from Century Regional Detention Facility in Lynwood, Calif., early Thursday and reassigned to home detention after serving just three days of her minimum 23-day sentence. The heiress was fitted with an ankle bracelet and her original 45-day sentence was reinstated – since she'd enjoy the confines of her Hollywood Hills home instead of a 12-by-8-foot cell – with credit for five days served. Hilton's reassignment sparked outrage across the nation; the L.A. Board of Supervisors alone received more than 500 angry calls, e-mails and faxes by Thursday afternoon. At least two of the supervisors demanded an investigation.