Iran has sharply condemned what it calls a series of repeated armed attacks on its safeguarded nuclear facilities, directly implicating the United States and Israel, and has called on the United Nations and the International Atomic Energy Agency (IAEA) to take immediate action.
In a forceful letter written by Foreign Minister Dr. Abbas Araghchi to the UN Secretary-General, Security Council members, and the IAEA Director General, Tehran described the strikes on key nuclear sites as a “grave escalation” that threatens both regional security and international law.
The letter accuses international bodies of inaction, warns of potential radioactive hazards, and underscores Iran’s commitment to a peaceful nuclear program under IAEA safeguards.
The letter, dated 3 April 2026, details a series of alleged strikes on Iran’s nuclear infrastructure over the past nine months, including attacks on the Natanz facility, the Heavy Water Production Plant in Khondab-Arak, and the Bushehr Nuclear Power Plant. Araghchi warned that such attacks pose “grave humanitarian and environmental consequences” and could risk radioactive contamination across the region.
“Within a span of nine months, two wars of aggression have been imposed upon the Islamic Republic of Iran, by the US, a depository of the Treaty on the Non-Proliferation of Nuclear Weapons(NPT) and Israel, an outlaw regime that remains outside the framework of the NPT. In both instances, Iran’s peaceful nuclear facilities were attacked and bombed, and with grave disappointment, the United Nations Security Council, the IAEA Board of Governors and its Director General have flatly failed to even condemn the illegal attacks, let alone undertake effective measures within their mandate to prevent their recurrence,” he wrote in a letter.
According to the letter, the most recent incidents include multiple strikes near the active Bushehr Nuclear Power Plant and attacks on uranium processing sites, which the minister described as “intolerable escalation” and a violation of international humanitarian law.
Araghchi accused the UN Security Council and the IAEA of failing to condemn the attacks, arguing that inaction has emboldened the aggressors.
He cited violations of multiple UN Security Council resolutions and IAEA safeguards decisions, as well as the 1977 Additional Protocol to the Geneva Conventions, which protect nuclear installations from attack.
The Iranian minister also criticized the IAEA Director General for publicly disclosing sensitive information about Iran’s nuclear program and for statements suggesting the potential use of nuclear weapons against Iran. “Such positions have resulted in a serious erosion of confidence in the integrity of the non-proliferation regime,” the letter states.
Araghchi registered Iran’s protest and urged that the letter be circulated as a document of the UN Security Council and an INFCIRC document of the IAEA.
The letter comes amid escalating tensions in the region, with Tehran emphasizing its nuclear program is exclusively for peaceful purposes under the IAEA’s comprehensive safeguards regime.
“I reiterate my warning that, should the United Nations Security Council and the Board of Governors of the IAEA remain indifferent in the face of manifest illegal attacks against Iran’s safeguarded nuclear facilities, the Member States may lose confidence in the United Nations, the Agency, and the broader non-proliferation regime will be further eroded. The consequences of such inaction would not be confined to Iran. Excellency, I avail of this opportunity to also register the formal protest and profound concern of the Islamic Republic of Iran regarding the IAEA Director General’s recent statements, which constitute a serious departure from official mandate of his office and are in violation of the Statute of the IAEA and the Comprehensive Safeguards Agreement (CSA),” he said.
He warned that continued inaction by international bodies could further erode confidence in the UN, the IAEA, and the broader nuclear non-proliferation

