Starmer added on X: “This week the UK and France will co-host a summit to advance work on a coordinated, independent, multinational plan to safeguard shipping when the conflict ends.”
Trump announced on his Truth Social platform Sunday that the U.S. would be “blockading any and all ships trying to enter, or leave, the strait of Hormuz” shipping route in the Middle East.
It follows the failure of the first round of peace negotiations between the U.S. and Iran over the weekend.
Starmer declined, when asked, to blame the U.S. for rising costs, instead accusing Iran of breaking international law by restricting vessels through the Persian Gulf.
Increased costs to U.K. consumers are “largely because of Iran’s actions in closing or partially-closing the Strait of Hormuz,” he said.
Clea Caulcutt contributed reporting.