U.S. President Donald Trump said Saturday the United States bombed three Iranian nuclear sites, bringing the U.S. directly into Israel’s war with Tehran.

“We have completed our very successful attack on the three Nuclear sites in Iran, including Fordow, Natanz, and Esfahan,” Trump said in a statement Saturday.

It was not immediately clear what damage the strikes caused or how significant a blow was dealt to Tehran’s program. It could take some time before the results are clear. Trump said the U.S. used “a full payload of BOMBS … on the primary site, Fordow,” which is also known as Fordo.

The Fordo nuclear enrichment facility is buried deep inside a mountain to shield it from attacks.

Trump said all planes are “safely on their way home,” adding in a separate Truth Social post all of the planes were out of Iranian airspace. Trump had Friday said he would take two weeks to decide whether to bomb Iran’s nuclear sites to give diplomacy a chance.

“NOW IS THE TIME FOR PEACE!,” he said in the statement.