US President Donald Trump threatened Iran with 'total destruction' if it attempts or carries out what he described as 'assassination plots' against him, following reports that Israel informed the United States of intelligence information claiming an Iranian plan to target the US president, as diplomatic efforts continue to contain tensions between Washington and Tehran.

Trump said in a post on Truth Social early Saturday that 'there are a thousand missiles ready to launch and aimed at Iran, and thousands more will follow immediately' if Tehran carries out its threat to 'assassinate the President of the United States or attempt to assassinate him.'

He added that he issued orders making the US military 'ready, willing, and able' to 'completely destroy all areas of Iran for a full year, extendable.'

The Wall Street Journal reported, citing people familiar with the matter, that Israel shared new intelligence information with the United States indicating a new Iranian plot to assassinate Trump.

During his remarks to reporters in Ankara while attending the NATO summit this week, Trump said he considers himself 'number one on Iran's assassination list.'

He added: 'I'm on all of their lists; I saw that I'm on every one of their lists. So far, I think I've been a little lucky, but maybe that won't last long.'

Iran has publicly vowed for years to take revenge on Trump for his decision during his first term to assassinate Qasem Soleimani, the former commander of Iran's Islamic Revolutionary Guard Corps' Quds Force.

Israel pushes to resume war

Israel expressed readiness to engage in any potential escalation between the United States and Iran, despite Washington's 'lack of enthusiasm' for it.

Israeli Prime Minister Benjamin Netanyahu, Defense Minister Israel Katz, and Chief of Staff Eyal Zamir said Thursday that Israel is ready to resume the war on Iran at any moment.

Two Israeli sources told CNN on Friday that the Trump administration does not want to involve Israel in the military confrontation with Iran, fearing loss of control over the escalation trajectory.

One of the sources said Netanyahu 'strongly desires to join the US strikes, but the United States does not want to involve Israel at this time.'

Relations between Trump and Netanyahu have seen tension in recent weeks as their positions diverged over the continuation of the war on Iran, with Netanyahu pushing to continue attacks and achieve more military objectives, while Trump seeks a way out of the conflict fearing its impact on the global economy, following a fragile ceasefire between the United States and Iran last month.

Trump and Netanyahu held a phone call on Thursday, according to the Israeli Prime Minister's Office, and agreed to continue 'coordination between the two countries,' as Trump briefed Netanyahu on the latest US activities in the Gulf region.

The mutual military escalation between Iran and the United States on Tuesday and Wednesday, along with Washington's re-imposition of sanctions on Iranian oil exports, has increased uncertainty about the future of the fragile ceasefire between the two countries, as mediator efforts continue to prevent wider escalation.