Iran’s Ministry of Intelligence on Wednesday evening released what it described as secret photographs of nuclear facilities in “Israel”, alongside classified documents related to American and European scientists.

According to Iranian media, the materials were obtained through a complex intelligence operation carried out months ago, marking what officials hailed as a major security achievement against the Israeli occupation.

WATCH: Footage released by Iran's Ministry of Intelligence from inside Israel's Dimona nuclear facility.

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Iranian Intelligence Minister Esmail Khatib said the operation involved cooperation from insiders within Israeli nuclear and security organizations who transferred the documents to Tehran. He added that Prime Minister Benjamin Netanyahu should “address the living conditions of his employees who continue to cooperate with us for money.”

Millions of pages of sensitive material

Khatib stated that the archive delivered to Iran contains “millions of pages of diverse and valuable information” on the Israeli regime, including details of past and present weapons projects, programs for upgrading old nuclear arms, and joint initiatives with the United States and several European countries.

🇮🇷🇮🇱| Iran had targeted Israeli specialised military & nuclear assets, with info obtained from the intel grab

Iran’s ministry of intelligence reveals that it holds full information on 189 Israeli nuclear and military experts, and this list is still getting completed.

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The files also reportedly contain organizational charts and the names of individuals involved in weapons programs.

The minister further noted that individuals accused of collaborating with the Israeli occupation had been exposed, with some executed. He emphasized that “Israel” has sought to conceal the extent of Iran’s penetration of its security institutions.

🇮🇷🇮🇱| WATCH: Exclusive images from Iranian intelligence agents inside the Israeli Dimona nuclear power plant.

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Iran reveals acquired thousands of documents

Iran’s intelligence services have successfully obtained a vast trove of highly classified strategic documents and information tied to "Israel", well-informed sources told Al Mayadeen in June.

The sources told Al Mayadeen that the data included "thousands of documents related to the Israeli occupation's projects and its nuclear facilities."

According to the sources, the operation took place some time ago, but the enormous volume of documents and the need to safely transport the entire haul into Iran "required keeping the matter under secrecy."

"It has been confirmed that the entire cache of documents reached the designated secure location," the sources told Al Mayadeen, adding that "the volume of material is so vast that simply reviewing the documents, along with their accompanying photos and videos, would take an exceptionally long time."

This development comes amid a backdrop of tensions between Iran and "Israel", as the occupation continues to push for military action against Iran's nuclear capabilities, a move Tehran has warned against.