US disputes Iranian claims about closing Strait of Hormuz as negotiators head to Switzerland

<p>By Humeyra Pamuk, Jana Choukeir, Ahmed Tolba and Steve Holland</p><p>ZURICH/DUBAI/WASHINGTON, June 21 (Reuters) - Negotiators from the United States and Iran were set to start peace talks in Switzerland on Sunday, even as U.S. officials disputed Iranian claims about closing the key Strait of Hormuz.</p><p>A high-level Iranian team arrived in Switzerland for peace talks with the U.S., Iranian state media reported, as U.S. Vice President JD Vance departed Washington for meetings that Pakistan said will begin on Sunday.</p>