The US and Iran have held talks to end the war but the negotiations in Pakistan ended without agreement in the early hours of Sunday. Streeting said the UK - which is not involved in the talks - wanted to see a negotiated end to the war that "puts Iran's nuclear ambitions to bed".

US and Iranian delegations fail to reach common ground after 21 hours of negotiations, with both sides blaming the other for unreasonable demands

Vice President JD Vance said the U.S. needs a commitment that Iran won’t seek to revive its atomic program.

Calling this marathon negotiating session a failure belies the scale of the challenge in narrowing wide gaps on complex issues ranging from age-old suspicion about Iran's nuclear programme to new challenges this war has thrown up - most of all Iran's control of the strategic Strait of Hormuz, whose closure is causing economic shocks worldwide.

Pope Leo decries the "delusion of omnipotence" he says is driving the war in Iran, urging peace during a Saturday vigil at St. Peter's Basilica.

The US and Iran’s failure to strike a peace deal over the weekend is set to weigh on market sentiment and lift demand for safe haven assets on Monday, according to analysts.

Iranian negotiators and US Vice President JD Vance have reached Pakistan for make-or-break peace talks. Trump issues a 24-hour ultimatum on the Strait of Hormuz while Israel continues airstrikes in Lebanon despite the ceasefire.

Experts say Iran uses civilians and children as human shields for propaganda purposes, caring nothing for the safety and fate of its own people.