President Donald Trump vetoed Israel’s plan to kill Iran’s Supreme Leader Ayatollah Ali Khamenei, according to a U.S. official familiar with the matter.

Israel unleashed airstrikes across Iran for a third day Sunday and threatened even greater force as some Iranian missiles evaded Israeli air defenses.

Iran has launched a second round of missiles against Israel as Israel's military kept up attacks on Iran following earlier strikes that targeted nuclear sites.

Iran has told the United States and UK that it could retaliate if the countries aid Israel in attacks amid fears the Middle East will descend into war.

Israel's defense minister warned Saturday that "Tehran will burn" if Iran continues firing missiles, as the countries traded blows.

Tensions in the Middle East have escalated as Israel employs unprecedented warfare tactics against Iran, according to Louis Libin, a combat technology expert.

Tensions in the Middle East have intensified as Iran's state television announced that more missiles are headed toward Israel.

President Donald Trump on Friday urged Iran to quickly reach an agreement on curbing its nuclear program as Israel vowed to continue its bombardment.