Iran evacuated the three nuclear sites prior to Saturday's U.S. military strikes, the deputy head of Iran's state broadcaster said.

Hassan Abedini told the television that "Iran had evacuated the three nuclear sites some time ago."

The U.S. bombed Fordow, Natanz and Isfahan nuclear facilities on Saturday, U.S. President Donald Trump said.

"The enriched uranium reserves had been transferred from the nuclear centers and there are no materials left there that, if targeted, would cause radiation and be harmful to our compatriots," Abedini noted.