
JD Vance has said that no agreement has been made with Iran after 21 hours of negotiations.
Peace talks between the US and Iran took place in Pakistan’s capital, Islamabad, with the vice president leading the US delegation.
"The bad news is we have not reached an agreement," Vance told reporters.
Reports from inside the peace talks suggest the status of the strait remains a key point of contention, though Vance suggested it surrounded a nuclear enrichment agreement.
According to sources, there were several "disagreements" between the Iranian and American delegations during the talks.
US officials have said the Strait of Hormuz reportedly remains closed because Iran can’t find the mines it laid in the shipping channel.
Vance added: "The simple fact is that we need to see an affirmative commitment that they will not seek a nuclear weapon, and they will not seek the tools that would enable them to quickly achieve a nuclear weapon.
"That is the core goal of the President of the United States, and that’s what we’ve tried to achieve through these negotiations."
Speaking to reporters outside the White House on Saturday, Donald Trump claimed military victory against Iran and downplayed the importance of ongoing ceasefire negotiations, claiming “regardless of what happens, we win".
“Let’s see what happens – maybe they make a deal, maybe they don’t,” the president said. “It doesn’t matter. From the standpoint of America, we win.”
Vance confirmed that he will now travel back to the US.
He added: "We go back to the United States having not come to an agreement.
"We’ve made very clear what our red lines are, what things we’re willing to accommodate them on and what things we’re not willing to accommodate them on.
"And we’ve made clear as we possibly could. And they have chosen not to accept our terms."