Trump threatens to ‘hit Iran very hard again’ over support for Hezbollah

U.S. Vice President JD Vance and senior Iranian officials arrived in Switzerland on Sunday to formally launch negotiations over Tehran’s nuclear program.

OBBUERGEN, Switzerland — U.S. Vice President JD Vance said Sunday there was an opportunity to “turn over a new leaf” with Iran as the sides launched talks aimed at building out the interim deal to end the war in Iran reached by the two sides last week.

But even as Vance called on Tehran to build on the moment, President Donald Trump threatened to restart strikes on Iran for its support of Hezbollah militants in Lebanon or if it moved to close the strategic Strait of Hormuz.

“Iran must immediately stop their highly paid PROXIES in Lebanon from causing trouble,” Trump said on social media, one of multiple provocative warnings to Iran on Sunday. “If they don’t, we’ll hit Iran very hard again, just like we did last week, only harder!!!”

Vance and U.S. negotiators met with Iran’s parliamentary speaker, Mohammad Bagher Qalibaf, and Foreign Minister Abbas Araghchi at a Swiss mountainside resort near Lake Lucerne. Mediators from Pakistan and Qatar were also present for the direct engagement that, according to Iranian state media, lasted about 80 minutes. The U.S. and Iranian negotiating teams also held separate private talks with Pakistani and Qatari officials.

The U.S. is looking to get Iran locked into negotiations over its nuclear program amid concerns it may be used for military purposes, which Iran denies. Vance also wants to push Tehran to commit to keeping open the Strait of Hormuz, the critical waterway through which about a fifth of world traded oil passes.

But Trump’s comments from afar—he spent much of the weekend at the presidential retreat at Camp David, Maryland— appeared to threaten to derail the negotiations.

“They would do better to be careful about their statements,” Qalibaf posted on X. ”Our armed forces are prepared to respond to them in a different manner. They may keep talking, it is we who act.”

Iranian state media said the talks had entered a “difficult phase” and recessed after the “publication of an insulting message by the U.S. President.” The Iranian delegation then met with Qatari mediators and left the negotiating site, state media said.

Despite the heated social media exchanges, an official with knowledge of the talks later told the AP the Iranian delegation remained engaged in the talks and has not indicated to mediators any intention to leave. The official requested anonymity due to the sensitivity of the talks.

Iran first wants to focus on Israeli strikes in Lebanon

The on-again, off-again conflict in Lebanon, between Israel and Iranian-backed Hezbollah militants, continues to threaten to derail the effort for the U.S. to win concessions from Tehran on its nuclear program and keep the Strait of Hormuz open.

“The question before us now is how much more can we accomplish together? Can we turn over a new leaf?” Vance said in brief comments as the talks, dubbed the “Lake Lucerne Summit,” got underway.

“Can we change relations in the Middle East permanently, or do we go back to doing things the old way, which is not our preference, but is certainly very much something that can happen.”

Iranian Foreign Ministry spokesman Esmail Baghaei told the country’s state news agency that their team’s negotiations looked to focus on the war between Israel and Hezbollah in Lebanon.

The agreement signed by Trump and Iranian President Pezeshkian immediately allows Tehran to sell its oil freely and paves the way for Iran to tap into billions of dollars in assets that are currently frozen. It also calls for Iran to dilute its stockpile of highly enriched uranium, believed to be buried under nuclear sites that were targeted in U.S. strikes last summer.

Pezeshkian, however, has insisted on Iran maintaining its right to enrich uranium.

He repeated that stance on Sunday. “What is certain is that we will never back down from the right to enrich uranium, and the other side is also forced to accept it,” Pezeshkian said, according to Iran’s state media.

Trump, in a telephone interview Sunday with Fox News, warned that the Iranian president should watch what he says and threatened to take over the rest of the country, in comments relayed by a Fox correspondent.

A delayed meeting is now back on

Iran had cautiously approached the talks given its previous experience with U.S. negotiations on the nuclear issue, which twice in the past year were interrupted by massive military strikes against the country. “The implementation of any document is more important than its signing,” Baghaei said Sunday.

Vance had originally been slated to be on the ground at the Bürgenstock resort near Lucerne on Friday, but his departure from the United States was delayed after fighting escalated in Lebanon and Iranian officials cancelled plans to attend the talks.

U.S. Central Command disputed Iran’s claim that it had once again shuttered the strait and said U.S. forces continued to monitor the situation to ensure traffic continues to flow through the waterway. Vance has said that millions of barrels of oil have moved through the strait in recent days.

The vice president was joined by special envoy Steve Witkoff and Jared Kushner, Trump’s son-in-law, for Sunday’s talks. Witkoff and Kushner were on the ground in Switzerland ahead of Vance to begin sifting through the technical details of the nuclear talks.

Vance and his wife, second lady Usha Vance, arrived at Emmen Air Base outside Lucerne just before 6 a.m. local time, according to his office.

Vance said he planned to be in Switzerland for just “a day or two,” leaving much of the detailed negotiations to be spearheaded by Witkoff and Kushner, his role in the talks has heightened scrutiny of the vice president at a time when he’s actively considering a 2028 presidential campaign.

The deal has stirred much controversy

Trump and Vance have come under searing criticism from parts of their own party for the deal, with Republican hard-liners unfavorably likening it to a nuclear agreement signed by the Obama administration that Trump and the GOP have insisted did nothing to actually terminate Iran’s nuclear program.

The agreement signed by Trump and Iranian President Pezeshkian immediately allows Tehran to sell its oil freely and paves the way for Iran to tap into billions of dollars in assets that are currently frozen. It also calls for Iran to dilute its stockpile of highly enriched uranium, believed to be buried under nuclear sites that were targeted in U.S. strikes last summer.

The agreement says commercial vessels can pass through the Strait of Hormuz for 60 days without a charge, but does not preclude future fees imposed by Iran. Trump made his own threat on Saturday to levy U.S. tolls on the strait if there is no deal with Iran in 60 days, insisting in a social media post that the money would be for “services rendered as the Guardian Angel to the countries of the Middle East.”

The Trump administration has been working to reassure global markets that the Iran war has been merely a blip on oil prices, as Americans complain the conflict resulted in hiking gasoline prices ahead of peak summer travel months. After the White House announced the deal a week ago, oil futures dropped almost 8 per cent — and markets are expected to closely track the progress of talks when they open for trading on Sunday evening.

Further complicating matters, neither Israel nor Hezbollah is a signatory to the deal between the U.S. and Iran, and Israeli Prime Minister Benjamin Netanyahu has vowed to keep his forces in southern Lebanon until any threat to Israel is eliminated. Hezbollah has refused to halt its attacks unless Israel commits to withdrawing from Lebanon.

By Aamer Madhani, Seung Min Kim, And Jamey Keaten.

Kim reported from Washington. Associated Press writers Munir Ahmed in Islamabad, Amir Vahdat in Tehran, Iran, and Melanie Lidman in Tel Aviv, Israel, contributed to this report.