Trump: US will reinstate Strait of Hormuz blockade and impose 20% charge on cargo

US President Donald Trump has said the US will reinstate the blockade on Iranian ports.

Here's his Truth Social post in full:

"The Hormuz Strait is open, and will remain open, with or without Iran. We are reinstating the Iranian blockade, so named because it is only stopping Iran's ships or customers from entering or leaving. All other countries will have fair and open use of the Strait.

"The U.S.A. will, from this point forward, be known as 'the Guardian of the Hormuz Strait,' but as such, and as a matter of fairness, will be reimbursed, at the rate of 20% on all cargo shipped, for any and all costs necessary to do the job of providing safety and security to this very volatile section of the world. The process and formation will begin immediately."

This is not the first time Trump has blockaded Iranian ports in the Strait of Hormuz.

In April, US forces announced they would intercept or turn back vessels travelling to or from Iran's coast. The US wanted to restrict Tehran's ability to profit from oil exports in an attempt to put pressure on the country.

The UN's maritime agency, the International Maritime Organisation, says no country has a legal right to block shipping in straits used for international transit.

"We're not going to let Iran make money on selling oil to people that they like and not people that they don't like," Trump said at the time.

Iran called the move "piracy".

The two countries had agreed to lift the blockade and reopen the Strait of Hormuz in the interim deal - or memorandum of understanding - agreed on June 17.

This time round, Trump has also imposed a charge of 20% on all cargo shipped through the vital waterway, but he did not explain how this would work.

Earlier Iran's top military headquarters, Khatam al-Anbiya, says it will not allow the US to "interfere in the management" of the Strait of Hormuz.

In a statement shared by Iran's Tasnim news agency, the Iranian military says "frequent misadventures" from the US in the strait have "seriously jeopardised the security of the region".

It adds "we do not and will not allow" the US to control the crucial waterway - and that Iran's armed forces are dealing with any disturbances from the "bandit army" of the US.

Any cooperation with the US will be considered an act of "war" against Iran's sovereignty, it adds, warning that if the conflict spreads "the flames of war will engulf all the countries of the region".