Iranian state media announced the acquisition of highly sensitive documents from Israel, including details on its nuclear facilities and military projects.
The report, published by IRNA, indicates the documents were obtained some time ago but kept secret for secure transfer.
The trove includes "thousands of documents concerning Israeli nuclear facilities and occupation-related projects," plus photos and videos.
The size and logistical challenges required full confidentiality during the operation.
The report didn't specify how the documents were obtained. The news is likely to exacerbate tensions.
Israel hasn't responded. This revelation comes amid rising hostilities.