Israel's operation against Iran's nuclear program, military leadership and arsenal of missiles is nowhere near over, with Israel having planned out 14 days of operations, a senior Israeli official said.

"The full strength and might of the U.S. Armed Forces will come down on you at levels never seen before," Trump warned.

The two powers have been exchanging barrages since Israel attacked Iran and killed many of the country’s top military leaders and scientists.

As the head of the secretive Islamic Revolutionary Guard Corps (IRGC) Major General Hossein Salami, was one of the most powerful men in Iran, overseeing its most potent military arm and reporting directly to its Supreme Leader Ayatollah Ali Khamenei.

Israel’s ambassador to the U.S., Yechiel Leiter, claimed that Israel had set Iran’s nuclear program back significantly, but that the full operation could take “weeks.”

Iran has fired two waves of missiles into Israel overnight. Another set of strikes near Tel Aviv killed a 60-year-old woman, according to the Israeli emergency service Magen David Adom (MDA). A further 20 people have been injured in the same area, as well as 24 people in the Judean Foothills, a spokesperson for the MDA added.

The Israeli military said on Friday it had “significantly damaged” Iran’s uranium enrichment facility at Natanz and that the operation was “still in the beginning.”

Israel has called its military operation against Iran "Rising Lion", taking the name from a biblical verse that promises a victorious future for a powerful Israel.

The death toll grew Sunday as Israel and Iran exchanged missile attacks for a third consecutive day, with Israel warning that worse is to come. Israel targeted Iran’s Defense Ministry headquarters in Tehran and sites it alleged were associated with Iran’s nuclear program,