The first round of talks between high-ranking U.S. and Iranian officials in Switzerland ended Monday, mediators said, after a tense opening marked by Tehran's announcement it had again closed the Strait of Hormuz and U.S. President Donald Trump repeating his threats to resume attacks on Iran.
A joint statement from mediating nations Qatar and Pakistan said the U.S. and Iran agreed to a roadmap toward a final deal within 60 days.
Technical talks will continue for the rest of the week in the Qatari-owned Swiss mountain resort of Buergenstock, according to the statement, which was released by the Qatari foreign ministry.
The parties agreed to a mechanism to end the fighting in Lebanon and opened a communications line to help ensure safe passages for commercial ships through the contested strait, the statement said.
U.S. Vice President JD Vance began talks with Iranian officials on Sunday under the terms of a memorandum of understanding reached last week to extend a tenuous ceasefire from April for at least another 60 days. The discussions continued until the early hours of Monday.
In a post on social media, Iranian Foreign Minister Abbas Araqchi said his country had secured waivers for oil and petrochemical exports, the release of some frozen assets and the launch of a reconstruction and development plan for Iran.
Trump also reiterated an earlier threat that the U.S. would take over the waterway and possibly charge a toll of its own.
Iran's semi-official Tasnim news agency, citing an informed source, said that after Trump's threats became public, the Iranian delegation refused to return to the room where talks were held, though messages were still being traded via Pakistani and Qatari mediators.
“The Iranians never left and are still here meeting and negotiating deep into the night," a U.S. diplomat involved in the talks stated. "We’ve talked about the Strait, Lebanon, nuclear issues, and details of implementing the MOU, among other topics."
The agreement calls for reopening the Strait of Hormuz, a choke point for global energy shipments, and ending all hostilities, including in Lebanon, where Israel has continued to launch deadly strikes as Iranian ally Hezbollah fires at Israeli targets.
Iran, arguing that the U.S. had failed to meet its commitment to halt fighting in Lebanon, said on the weekend that it had again stopped maritime traffic through the strait and that Sunday's talks would not cover substantive issues such as Iran's nuclear programme.
At the talks in Switzerland, where U.S. and Iranian officials met in the presence of Qatari mediators, Vance played down the impact of violence in Lebanon, saying progress had been made towards ending hostilities there.
Despite the announcement of a new ceasefire in Lebanon on Friday, there has been scant sign of an end to fighting there. Iran said on Saturday that as a result, it had again shut the strait, whose closure for nearly four months caused the biggest disruption of global energy supplies in history.
Five vessels passed the strait on Sunday, a sharp drop from the 26 ships spotted a day earlier, data from analytics firm Kpler showed. The data may exclude vessels that switch off their transponders while travelling in the Gulf.
Sunday appeared to be the quietest day in Lebanon for some time, with no reports of major violence by nightfall, after two days of heavy Israeli strikes and fire from Hezbollah fighters on Israeli positions.
More than 1 million people have fled their homes in Lebanon since Israel invaded in March to pursue Hezbollah fighters who fired across the border in support of Tehran.
