
Planned negotiations between the United States and Iran in Switzerland have been cancelled, casting doubt over the future of a proposed peace agreement and raising concerns about the durability of a fragile ceasefire between the two countries.
Swiss authorities confirmed that talks scheduled to take place at the Alpine resort of Burgenstock would no longer proceed, while US Vice President JD Vance also withdrew plans to attend alongside other American officials.
A White House spokesperson acknowledged the cancellation, saying discussions surrounding the negotiations remained fluid and had yet to be finalised. The US delegation had reportedly been prepared to travel once arrangements were confirmed.
Iranian authorities did not immediately comment on the development. However, Tehran had previously signalled readiness to begin technical discussions following last week’s 14-point agreement, which extended an existing ceasefire by 60 days.
Reports indicate Iranian officials wanted assurances that Washington was implementing key aspects of the interim deal before committing to further negotiations. Iranian media also suggested there had been no confirmation that Tehran’s delegation would travel to Switzerland.
The cancellation has also cast uncertainty over plans for a formal signing ceremony. While US officials had pushed for an official event in Switzerland, Iranian authorities reportedly questioned the need for such a ceremony after both governments had already endorsed the agreement.
The conflict, which began in February following US and Israeli military strikes on Iran, has claimed more than 7,000 lives, disrupted global energy markets and heightened economic uncertainty worldwide.
Questions over the agreement’s long-term viability have also been fuelled by Israel’s continued military operations against Hezbollah targets in Lebanon, despite the broader ceasefire framework.
The deal has generated political debate in Washington, with some Republican lawmakers criticising President Donald Trump’s administration for making significant concessions to secure an end to the conflict.
Although Trump initially insisted the war would end only through Iran’s “unconditional surrender,” the agreement reportedly includes sanctions relief, the release of frozen Iranian assets and waivers allowing Iranian oil exports to resume.
Iran’s Supreme Leader, Mojtaba Khamenei, described the agreement as the result of American pressure to end the conflict and warned that future negotiations over Tehran’s nuclear programme would remain challenging.
Under the framework, negotiators have 60 days to reach a broader agreement on Iran’s nuclear activities, with provisions for an extension if necessary. The deal also outlines a proposed $300 billion reconstruction initiative for Iran and affected regions.
Meanwhile, reports indicate the US Department of Defense has requested approximately $80 billion to cover war-related expenses and other commitments arising from the conflict.
Despite the agreement, several key US objectives remain unresolved. Iran continues to maintain that it does not seek nuclear weapons, while agreeing to international inspections and the monitored dilution of highly enriched uranium stockpiles.
US officials remain optimistic that future discussions could lead to a more comprehensive nuclear accord. Critics, however, argue that Iran emerged from the conflict in a stronger strategic position after preserving influence over the Strait of Hormuz and securing major economic concessions.
Iran has also indicated it will continue overseeing maritime activities in the Strait of Hormuz alongside Oman and plans to introduce new service charges for vessels using the vital shipping route once the negotiation period ends.
Oil prices eased on Friday as shipping traffic gradually resumed through the Strait of Hormuz, one of the world’s most important energy corridors.
In Lebanon, renewed Israeli airstrikes reportedly killed at least 15 people, with Israeli authorities saying the operations targeted Hezbollah positions. The attacks have further complicated efforts to achieve a lasting regional ceasefire.
The continued violence has also exposed growing tensions between Washington and Israel, as President Trump has increasingly criticised Israeli military actions despite the longstanding alliance between the two countries.