India, June 21 -- Delegations from the United States and Iran have arrived at a secluded mountainside resort in Burgenstock, Switzerland, for critical negotiations aimed at salvaging a fragile interim US-Iran peace deal, even as fresh military flare-ups in Lebanon and a renewed closure of the Strait of Hormuz threaten to derail the diplomatic process.

US Vice President JD Vance landed in Switzerland early Sunday morning to lead the American delegation, joined by key Trump administration advisers, including Jared Kushner and special envoy Steve Witkoff.

The talks, mediated by Pakistani and Qatari officials, are intended to build upon a 60-day roadmap established in a recent Memorandum of Understanding (MoU) between US President Donald Tr...