US Vice President JD Vance has arrived for peace talks with Iran at a Swiss mountaintop resort as foreseen in a tentative peace deal, but the diplomacy was overshadowed by Iran's announcement it had reimposed its blockade of the Strait of Hormuz.
A memorandum of understanding on a path to end the war, agreed a week ago, calls for the Strait to be reopened and a halt to all hostilities, including in Lebanon, which Washington's ally Israel invaded in March.
But with little sign of an end to fighting there, Iran said on Saturday it had shut the Strait again.
