Iran Accuses Israel of War Crimes Over Attacks on Nuclear Facilities in Letter to UN Security Council

In a strongly worded letter to the United Nations Security Council, Iran has accused Israel of committing war crimes by launching multiple airstrikes on its nuclear facilities. The letter, submitted by Iran’s permanent mission to the UN, claims that the attacks violate international law and threaten the global nuclear non-proliferation regime.

According to the letter, Israel recently carried out direct military strikes on the Arak Heavy Water Research Reactor, a site under full monitoring and verification by the International Atomic Energy Agency (IAEA) in accordance with UN Security Council Resolution 2231 (2015) and the Joint Comprehensive Plan of Action (JCPOA).

“This reprehensible act constitutes the third such attack in recent days,” the Iranian mission stated.

Timeline of Alleged Israeli Attacks

Iran outlined a series of targeted strikes carried out by Israel within less than a week:

• June 13, 2025: An armed attack was reportedly launched against the Uranium Conversion Facility and the Fuel Plate Fabrication Plant.

• June 18, 2025: Israeli forces allegedly struck centrifuge production sites in Tehran and Karaj.

• June 20, 2025: The Arak Heavy Water Reactor was hit, prompting the formal letter of protest to the UN.

The letter claims that these repeated airstrikes are not only military aggressions but also violations of international agreements, including the UN Charter, the IAEA Statute, and multiple IAEA and Security Council resolutions.

Violation of International Norms and Non-Proliferation

Iran’s letter warned that the attacks have far-reaching consequences beyond national borders. It stated that the strikes “represent an unprecedented and dangerous assault on the integrity of the global nuclear non-proliferation regime” and undermine the “multilateral safeguards administered by the IAEA.”

The JCPOA, signed in 2015, had placed stringent limitations on Iran’s nuclear program in exchange for sanctions relief. Though the agreement has suffered repeated setbacks—most notably the U.S. withdrawal in 2018—monitoring and inspections by the IAEA have remained in place at key nuclear sites, including Arak.

“These acts are not just violations of sovereign rights, they directly endanger regional and global peace,” the letter continued.

What This Means for Global Security

The accusations come amid heightened military conflict between Israel and Iran, marked by tit-for-tat airstrikes, cyber warfare, and escalating rhetoric on both sides. Analysts warn that attacks on nuclear facilities—especially those under international supervision—could set a dangerous precedent and destabilize global norms around nuclear safety.

While Israel has not officially confirmed or denied the alleged airstrikes, it has long viewed Iran’s nuclear program as a direct threat to its national security. The Israeli government has previously vowed to take “preemptive action” to prevent Iran from acquiring nuclear weapons capability, though Iran maintains that its program is strictly for peaceful purposes.

A Call to the International Community

Iran’s mission concluded the letter by urging the Security Council to take immediate action, stressing that failure to respond would embolden further violations and weaken the authority of the UN and its affiliated bodies.

“The silence of the international community in the face of these acts of aggression will only serve to encourage further lawlessness,” the letter warned.

The Iranian appeal has added pressure on the UN Security Council to intervene or at least investigate the situation. Meanwhile, diplomats and global watchdogs are closely monitoring developments, fearing a potential spillover that could destabilize not just the Middle East, but international security frameworks at large.

What’s Next?

The UN Security Council has not yet issued a formal response to Iran’s letter, but calls for an emergency session are growing louder. International observers will be watching closely to see whether the Council upholds its resolutions or risks being perceived as ineffective in the face of rising global tensions.

As conflict deepens, the world faces a pivotal moment: whether to reinforce the foundations of international law—or risk watching them erode.