Iran has closed the Strait of Hormuz just hours after the first tankers managed to pass through.
The country’s joint military command said on Saturday that it’s “control of the Strait of Hormuz has returned to its previous state … under strict management and control of the armed forces.”
A military spokesperson accused the US of not meeting its obligations after US President Donald Trump refused to lift America's own blockade of Iranian ports.
The key shipping lane had seen the "first major movement" of ships since the start of the war this morning.
But Tehran has since warned it will continue to block transit through the vital trade route as long as the US blockade of Iranian ports continued.
Iran's state broadcaster IRIB said the key shipping lane "is now closed again and passage requires Iran approval."
It comes after Trump warned the US will resume its bombing campaign in Iran if peace is not reached by Wednesday – and vowed to keep the Strait of Hormuz blockade “in full force”.
Tehran had said the key trade route would remain “fully open” for the final few days of the two-week ceasefire, with tracking data showing a fleet of oil tankers sail through.
But Trump threatened to start “dropping bombs” if the regime doesn’t renounce their nuclear ambitions and accept Washington‘s terms by the middle of next week.
The US president appeared optimistic that a deal would be reached, telling reporters on Air Force One that he had received some “pretty good news” on the state of a deal.
“It seems to be going very well in the Middle East with Iran," he said.
“You’ll hear about. I just think it’s something that should happen. It’s something that only makes sense to happen. And I think it will.”
The White House was considering releasing $20billion (£14.75bn) in frozen Iranian assets to entice the cash-strapped regime to give up its entire stockpile of enriched uranium.
