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Head of Iran's Atomic Energy Organization: The Arak Reactor Pit Will Not Be Filled with Concrete

Feb 1, 2026 February 1, 2026 2 min read 📰 Radio Farda
📋 Key Takeaway

Ali Akbar Salehi, head of Iran's Atomic Energy Organization, refuted John Kerry's claims about filling the Arak reactor pit with concrete, stating it would destroy the reactor. This disagreement highlights tensions surrounding the nuclear agreement and reflects domestic criticism in Iran regarding perceived concessions.

🔍 Quick Context Guide
💡 Bottom Line: The dispute over the Arak reactor highlights deep-seated tensions between Iran and the U.S. regarding nuclear negotiations.

👥 Key Players

Ali Akbar Salehi MENTIONED
Head of Iran's Atomic Energy Organization
"Salehi is a key figure in Iran's nuclear program and plays a significant role in negotiations related to Iran's nuclear capabilities."
John Kerry MENTIONED
U.S. Secretary of State
"Kerry was instrumental in negotiating the Iran nuclear deal and his statements carry weight in international discussions about Iran's nuclear activities."
Mohammad Javad Larijani MENTIONED
Deputy for International Affairs in the Judiciary
"Larijani represents hardline views within Iran and his criticism reflects domestic opposition to perceived concessions in the nuclear deal."

📰 What Happened

Ali Akbar Salehi rejected John Kerry's claims about filling the Arak reactor pit with concrete, stating it would destroy the reactor. This disagreement underscores ongoing tensions regarding the nuclear agreement and domestic criticism in Iran.

  • Salehi stated that the reactor pit is essential and should not be filled with concrete.
  • Kerry's comments have been criticized by Iranian hardliners as humiliating.

💡 Why It Matters

🇮🇷 For Iran: This issue is significant for Iran as it reflects internal divisions over the nuclear deal and national pride regarding its nuclear capabilities.
🌍 Regional: The implications for the region include heightened tensions with neighboring countries and concerns about nuclear proliferation.
🌐 International: Internationally, this disagreement complicates diplomatic efforts to ensure Iran's compliance with the nuclear agreement.

📚 Background

The Arak heavy water reactor has been a focal point in discussions about Iran's nuclear program, with concerns about its potential to produce plutonium for weapons. The nuclear agreement aimed to limit Iran's nuclear capabilities in exchange for sanctions relief.

Iran nuclear deal Nuclear proliferation
📡 Source: STATE MEDIA
📊 Confidence: 70%
The statements reflect the Iranian government's official stance and may downplay or reject criticisms from Western officials.

The head of Iran's Atomic Energy Organization described U.S. Secretary of State John Kerry's statements about filling the pit of the Arak heavy water reactor with concrete as a 'mistake.' On Wednesday, August 21, Ali Akbar Salehi stated that if concrete were poured into the pit of the Arak reactor, 'there would essentially be no reactor left,' thus deeming Kerry's remarks 'incorrect.' Kerry had mentioned on August 1, during a Senate Foreign Relations Committee meeting, that under the nuclear agreement, Iran would remove the core from the Arak reactor and replace it with concrete. However, Salehi rejected these claims, asserting that 'the reactor pit is considered its heart and therefore will not be damaged and will remain intact.' He emphasized that what would be filled with concrete is not the reactor pit but rather the steel container inside it, which will be removed from the reactor. According to him, the steel container is to be taken out of the pit, and several actions can be performed on this container, including pouring concrete into it to assure the nuclear agreement parties that Iran no longer intends to return it to the reactor. Kerry's comments about pouring concrete into the Arak reactor pit have drawn criticism from Iranian hardliners, including Mohammad Javad Larijani, the Deputy for International Affairs in the Judiciary, who called it 'an insult to a nation.' Larijani told Tasnim News Agency, 'Filling the heart of the Arak reactor with concrete is the ultimate humiliation of a nation; why would we do such a thing? In my opinion, not even a needle's worth of what we have should be destroyed. Our children built this. This is not called redefinition; this is the destruction of the Arak reactor.'

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Translated from the original and edited for English readers. View original source →

Translation confidence: 85%

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