East Suffolk and North Essex NHS Foundation Trust has removed ten members of staff from their duties and launched an "urgent" internal inquiry after a reported data breach relating to Noah Woods, the trust said.
The trust gave no further details about the nature of the breach or how the individual staff were implicated. It said the investigation is under way to establish the facts and determine any next steps.
Data breaches within health services raise concerns about patient confidentiality and compliance with information governance rules. NHS trusts are responsible for safeguarding patient records and investigating any suspected unlawful or inappropriate disclosures.
The probe could lead to internal disciplinary action and, depending on the findings, referral to external bodies or regulators. The trust did not say whether other agencies had been notified or whether any data had been shared beyond the NHS.
The trust said its priority is to complete the inquiry promptly and to reassure patients and the public about the security of health information held in its care. It also indicated it would provide further updates once the investigation has established the relevant facts.
The case will be watched closely by campaigners and regulators given heightened public sensitivity to breaches involving children and the growing scrutiny of how personal data is handled across public services.