Multiple outlets report that French authorities are facing allegations of a cover-up regarding the circumstances of Princess Diana’s death. The claims centre on the existence of a secret file linked to her passing and reporting that information connected to that file will continue to be kept under lock. The articles say new details have emerged, prompting renewed scrutiny and accusations that authorities are not disclosing what occurred. While the coverage reiterates the accusation that officials are withholding relevant information, the provided accounts do not specify the contents of the file or any confirmed new findings about the crash itself. The reporting focuses on public reactions to the file’s continued restricted status and the broader controversy that has surrounded Diana’s death since 1997. Across the sources, the central points are that allegations have been raised against French authorities, and that a secret or confidential file related to Diana remains unavailable to the public. The outlets present the story as an ongoing dispute over transparency rather than as a conclusive new investigation outcome.