The UK’s information watchdog said it is assessing reports that hospital staff attempted to view Catherine’s private medical records while the Princess of Wales was admitted for an abdominal surgery in London.

The private hospital in central London, The London Clinic, where the 42-year-old was treated in January is said to have launched its own investigation into the claims. According to a Daily Mirror report, at least one staff member at the hospital had allegedly tried to access Kate’s medical notes.

“We can confirm that we have received a breach report and are assessing the information provided,” said a spokesperson for the Information Commissioner’s Office.

The hospital reportedly contacted Kensington Palace after the alleged breach came to light. “This is a matter for the London Clinic,” the palace said. The private clinic has so far not commented directly on the allegations. “We firmly believe that all our patients, no matter their status, deserve total privacy and confidentiality regarding their medical information,” the London Clinic told the Mirror newspaper.