U.S. Vice President J.D. Vance arrived in Switzerland on Sunday for high-stakes peace talks with Iran, as Tehran reiterated its closure of the Strait of Hormuz and Israeli-Hezbollah fighting in Lebanon threatened to derail fragile negotiations. Vance, who had postponed his trip on Friday, landed in Zurich to join a senior American delegation including Steve Witkoff and Jared Kushner for two days of talks aimed at finalising a 60-day ceasefire framework. Iranian state media confirmed the arrival of a high-level delegation led by parliament speaker and chief negotiator Mohammad Bagher Ghalibaf, with both sides describing the discussions as critical to ending the 114-day-old war.

The talks, mediated by Qatar and Pakistan, were set to begin in Burgenstock with Lebanon’s escalating conflict at the top of the agenda. Vance told reporters before departure that Washington hoped to make progress on both Iran’s nuclear programme and a ceasefire in Lebanon, where Israeli strikes killed 20 people on Saturday . Iran’s Revolutionary Guards declared the Strait of Hormuz shut again on Saturday, citing Israeli actions in Lebanon as a breach of the preliminary ceasefire agreed on Wednesday . The U.S. and Iran have a 60-day window to resolve contentious issues, including Iran’s uranium stockpiles and the future of its nuclear programme, but the talks face immediate pressure from ongoing hostilities.

Iranian officials insisted that a halt to fighting in Lebanon was a prerequisite for progress, while Israel—excluded from the negotiations—continued military operations in the country. The Lebanese civil defence reported 20 deaths from Israeli strikes on Saturday, underscoring the precariousness of the situation . Vance’s arrival followed a weekend of brinkmanship, with Tehran threatening to keep the Hormuz Strait closed and Washington warning of consequences if the shipping lane remained shut .

Analysts described the talks as a test of whether the fragile ceasefire could hold amid regional escalation. “The next 48 hours will determine whether this interim agreement can survive the realities on the ground,” said a senior European diplomat in Geneva. Both sides have framed the negotiations as an opportunity to stabilise the region, but the absence of Israeli participation and the unresolved Hormuz dispute risk undermining any breakthrough. The Iranian delegation, led by Ghalibaf, arrived with a mandate to address nuclear constraints and regional de-escalation, while Vance’s team sought to balance pressure on Iran with assurances on Lebanon’s security.

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Articles

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