Iran's Natanz nuclear enrichment facility was hit in an airstrike on Saturday, the official Iranian news agency Mizan reported. There was no radiation leakage, it said, as the war in the Middle East entered its fourth week. Natanz, Iran's main enrichment site, was hit in the first week of the war and several buildings appeared damaged, according to satellite images. The United Nations' nuclear watchdog had said that "no radiological consequence" was expected from that earlier strike. The nuclear facility, located nearly 220 kilometers (135 miles) southeast of Tehran, had been targeted by Israeli airstrikes in the 12-day war between Iran and Israel in June 2025, and by the United States. The strike comes a day after U.S. President Donald Trump said he was considering "winding down" military operations in the Middle East even as the United States is sending three more amphibious assault ships and roughly 2,500 additional Marines to the region.