Peace negotiations between the United States and Iran pushed into their second day Monday in Switzerland, following a rocky first session that saw Tehran announce it had once again shut down the Strait of Hormuz while President Donald Trump renewed his warnings of military action against Iran.
Vice President JD Vance led talks with Iranian representatives on Sunday at the Qatari-owned Buergenstock mountain resort in Switzerland. The discussions were held under a memorandum of understanding reached last week, which extended a fragile ceasefire — originally established in April — by at least 60 more days.
Just before negotiations formally got underway Sunday, Fox News reported that Trump warned Iranian officials directly, saying “you won’t have a country” if they attempted to close the strait again. Trump also repeated an earlier threat that the U.S. could take control of the waterway and potentially charge its own toll, according to Fox News.
The two sides offered conflicting accounts of how the talks unfolded. Iran’s semi-official Tasnim news agency, citing an unnamed informed source, reported that after Trump’s remarks became public, the Iranian delegation refused to re-enter the negotiating room — though communication continued through Pakistani and Qatari intermediaries.
According to Tasnim’s source, the Iranian side insisted that before nuclear discussions could begin, the U.S. needed to fulfill other parts of the memorandum, including releasing frozen Iranian assets and issuing waivers to allow Iranian oil exports.
A U.S. diplomat directly involved in the negotiations pushed back on that characterization, telling Reuters: “The Iranians never left and are still here meeting and negotiating deep into the night. We’ve talked about the Strait, Lebanon, nuclear issues, and details of implementing the MOU, among other topics.”
A U.S. official said high-level talks were expected to conclude Monday, with technical teams staying on to continue more detailed discussions.
The memorandum of understanding had called for the Strait of Hormuz — a critical chokepoint for global energy shipments — to remain open, and for all hostilities to cease, including in Lebanon. There, Israel has continued to carry out deadly strikes even as Iranian ally Hezbollah fires on Israeli targets.
Iran cited the ongoing fighting in Lebanon as justification for again halting maritime traffic through the strait over the weekend, and said Sunday’s session would not address substantive issues like Iran’s nuclear program.
At the Swiss talks, Vance downplayed the violence in Lebanon, telling reporters that progress had been made toward ending the fighting there. “These things are always a little bit messy,” he said.
Meanwhile, Trump took to social media from the United States to issue a stern warning: “Iran must immediately stop their highly paid PROXIES in Lebanon from causing trouble. If they don’t, we’ll hit Iran very hard again, just like we did last week, only harder!!!” The message appeared to be directed at Hezbollah.
Even as Trump was issuing those warnings, Vance told reporters that the president had “asked us to turn over a new leaf to transform our relationship with the people of Iran.”
Late Sunday, a U.S. diplomat said discussions focused on “clarifying some of the confusing messaging from Iran on the Strait and building deconfliction mechanisms to ensure the Strait will remain fully open.”
Despite a new ceasefire announced in Lebanon on Friday, there has been little evidence of a genuine halt to the fighting. Iran said Saturday that, as a result, it had closed the strait once more — a closure that, over nearly four months, had caused the most significant disruption to global energy supplies in history.
U.S. officials disputed that the strait was actually closed, but shipping data told a different story. According to analytics firm Kpler, only five vessels passed through the strait on Sunday — a dramatic drop from the 26 ships recorded just one day earlier. The figures may not account for vessels that turned off their tracking transponders while in the Gulf.
Iran’s Fars news agency quoted a military source Sunday saying no new permits were being issued for ships to cross the strait until further notice.
Trump said he agreed to last week’s memorandum of understanding in order to prevent a global economic depression driven by surging oil prices caused by the strait’s closure. Oil prices had fallen sharply over the past week to their lowest levels since the conflict began on February 28, when U.S. and Israeli forces launched attacks on Iran. By early Monday, Brent crude futures had climbed more than $1 to $81.66 per barrel following the turbulent start to the peace talks.
Sunday appeared to be one of the calmer days Lebanon had seen in some time, with no major incidents reported by nightfall — a relative quiet following two days of intense Israeli strikes and Hezbollah rocket fire on Israeli positions.
More than one million people have been displaced from their homes in Lebanon since Israel launched a ground operation in March targeting Hezbollah fighters who had been firing across the border in support of Tehran. Reuters journalists in southern Lebanon on Sunday observed some of the heaviest traffic seen since the memorandum was signed, as residents began returning home — some stopping along backed-up highways to wave Hezbollah flags.
