Netanyahu was blindsided — and infuriated — this past week by Trump’s announcement that the U.S. was halting its military campaign against the Iranian-backed Houthis in Yemen after the Houthis agreed to stop firing on U.S. ships in the Red Sea, according to one of the U.S. officials and the two Middle East diplomats.

After ending a ceasefire two months ago, Israel is intensifying the war in the Gaza Strip, where a blockade on food, medicine and other supplies is worsening a humanitarian crisis. And Iran, an enemy of Israel and a rival of Saudi Arabia, stands on the cusp of being able to develop nuclear weapons.

Nadergholi Ebrahimi has asked Supreme Leader Khamenei to rethink Iran's nuclear policy if negotiations with the U.S. collapse.

The United States on Monday sanctioned three Iranians and a related technology firm on accusations of advancing Tehran's nuclear weapons research.

Iran and the United States held a fourth round of negotiations Sunday over Tehran’s rapidly advancing nuclear programe, just ahead of a visit by US President Donald Trump to the Middle East this week.