Iran Accuses US, Israel of Attack on Natanz Nuclear Facility Amid Escalating Conflict

Iran's atomic energy organization has announced that its Natanz nuclear enrichment facility was targeted in an attack attributed to the United States and Israel.

Iran Alleges Joint US-Israeli Strike

Tehran's atomic energy organization, in a statement carried by the Tasnim news agency on Saturday, March 21, 2026, confirmed that the Shahid Ahmadi Roshan enrichment complex in Natanz was targeted. The organization referred to the actions as "criminal attacks" by the United States and "the usurping Zionist regime."

The Natanz facility, located approximately 220km (135 miles) southeast of Tehran, is one of Iran's most critical uranium enrichment sites.

No Radioactive Release Detected

Crucially, Iranian officials reported that there was "no leakage of radioactive materials" at the site following the incident. Tasnim also stated that there is no danger to the local population near the facility.

IAEA Informed and Calls for Restraint

The International Atomic Energy Agency (IAEA) confirmed via a post on X that Iran had informed the UN nuclear watchdog about the US-Israeli attack on the Natanz site. The IAEA noted no increase in off-site radiation levels and stated it is investigating the report.

IAEA head Rafael Grossi reiterated his urgent "call for military restraint to avoid any risk of a nuclear accident" amidst the ongoing conflict.

Natanz Targeted Amidst Ongoing Conflict

The latest strike on Natanz occurs during a 22-day war involving the US and Israel against Iran. The White House has declared its primary objective in this conflict, launched on February 28, is to prevent Iran from developing nuclear weapons.

The Natanz site has been attacked previously, including damage in the first week of the current war, as observed in satellite imagery, and during a 12-day conflict between Iran and Israel in June 2025.

Israel Vows Increased Military Action

Adding to regional tensions, Israeli Defense Minister Israel Katz issued a warning on Saturday, stating that the US and Israeli militaries would "rise significantly" in intensity regarding their strikes against "the Iranian terror regime and the infrastructure on which it relies" in the coming week.

The Natanz facility is a cornerstone of Iran's nuclear program, making it a recurring target in regional conflicts. Any attack, even without radioactive leakage, signals a significant escalation and directly impacts international efforts to manage nuclear proliferation in the Middle East.

Key Takeaways

  • Iran accuses the US and Israel of attacking its Natanz nuclear enrichment facility on March 21, 2026.
  • Iranian officials report no radioactive material leakage and no danger to nearby populations.
  • The International Atomic Energy Agency (IAEA) has been informed and is investigating the incident, reiterating calls for military restraint.
  • This marks another attack on Natanz during an ongoing 22-day conflict, with previous strikes reported.
  • Israeli Defense Minister Israel Katz announced intentions for intensified US and Israeli military strikes against Iran in the upcoming week.