Donald Trump has claimed he could approve an Iran peace deal on Friday that contains major concessions from Tehran, including the opening of the strait of Hormuz and the elimination of the country’s nuclear programme. However, top Iranian officials signalled a final agreement had not been reached.

The two versions indicate Trump may once again be practising his “art of the deal” as he seeks to talk his way out of a war that has disrupted global energy supplies and rocked the world economy.

Trump emerged from the White House situation room after spending more than two hours with senior aides but did not immediately announce his decision. The New York Times, citing a senior administration official, reported that Trump had not made a decision on the peace deal.