Iran’s Foreign Minister Abbas Araghchi has strongly condemned Israeli attacks on the country’s nuclear facilities, warning that Israel will have to pay a “heavy price” for what he called crimes. He made the remarks on Friday in a post on social media platform X, following reports of multiple Israeli strikes.

According to CNN, Israeli forces carried out attacks on several Iranian nuclear sites, including a uranium production center and a heavy-water reactor. Iran’s state broadcaster IRIB also reported strikes on two steel plants in Isfahan. Araghchi said Israel claimed to have coordinated the attacks with the United States, though he argued that the move conflicted with the timeline extended by former U.S. President Donald Trump regarding Iran. He vowed that Iran would deliver a firm response.

The attacks occurred as Trump stated that if Iran reopened the Strait of Hormuz, the U.S. might delay planned strikes on Iranian energy facilities. The strait, a vital waterway between Iran and Oman, has seen limited shipping since U.S. and Israeli military operations began on February 28.