U.S. forces struck three Iranian nuclear sites—Natanz, Fordo, and Isfahan—escalating the Israel-Iran conflict. President Trump called the strikes successful, with Fordo as the main target. Iran confirmed the attacks but reported no radioactive leaks. The strikes followed Israeli attacks meant to prevent Iran from developing nuclear weapons. Iran, insisting its program is peaceful, has retaliated with missile and drone strikes. Until now, the U.S. had only helped defend Israel but hadn’t directly attacked Iran.

U.S. forces have carried out coordinated airstrikes on three significant Iranian nuclear and military facilities, intensifying the already volatile conflict between Israel and Iran. President Donald Trump described the operations as “very successful,” stating that the Natanz, Fordo, and Isfahan sites were hit, with Fordo being the main target. Iran’s Atomic Energy Organization confirmed that all three nuclear sites were attacked early Sunday.

This action by the U.S. follows a surprise barrage of Israeli strikes on Iranian sites on June 13. According to Israeli officials, the strikes were launched to prevent what they alleged was an impending Iranian move to develop nuclear weapons.

Iran, which maintains that its nuclear program is intended solely for peaceful purposes, has responded with a wave of missile and drone attacks targeting Israel. In return, Israel has continued its strikes on various sites within Iran.

Prior to this escalation, the U.S. and Iran had been engaged in negotiations that could have seen the easing of severe American economic sanctions on Iran in exchange for a significant reduction or complete halt to Iran’s uranium enrichment program. Until Saturday, while the U.S. had assisted in intercepting Iranian attacks directed at Israel, it had not taken direct military action against Iran.

Iran reported early Sunday that there were “no signs of contamination” at the nuclear facilities in Isfahan, Fordo, and Natanz following the U.S. strikes. Iranian state media cited a statement from the country’s National Nuclear Safety System Center, which said that radiation detectors recorded no radioactive leaks after the attacks. “There is no danger to the residents living around the aforementioned sites,” the statement assured.

The International Atomic Energy Agency previously stated that earlier Israeli airstrikes on Iranian nuclear facilities did not result in any recorded release of radioactive material into the surrounding environment.