US-Iran ceasefire talks in Switzerland cancelled after deadly Israel-Hezbollah strikes

Talks due to take place on Friday, 19 June 2026, between the United States and Iran in Switzerland to implement a ceasefire deal were cancelled after Hezbollah killed four Israeli soldiers and Israel launched a wave of retaliatory airstrikes in southern Lebanon and the Bekaa valley that killed at least 18 people.

The talks had been due to begin in the Swiss village of Obbürgen, at the Burgenstock Resort near Lucerne, two days after the signing of a memorandum of understanding (MoU) that opened a 60-day window to negotiate a permanent understanding over Iran's nuclear programme while restoring oil traffic through the strait of Hormuz.

The Swiss Foreign Ministry confirmed early on Friday that the talks, scheduled to take place at Burgenstock, would not go ahead. It said the planned discussions between the US, Iran, Qatar and Pakistan had been postponed, adding that Switzerland remained ready to facilitate them.

The White House said the United States looked forward to beginning technical talks as soon as possible, as it announced that Vice-President JD Vance, who is leading negotiations for the Trump administration, would no longer be travelling.

A White House spokesperson said late on Thursday that the logistics of the negotiations had never been simple or predictable, and that the vice-president was not departing that night.

The cancellation came so abruptly that Vance's staff and a small group of journalists had gathered at Joint Base Andrews outside Washington in anticipation of the trip. Dozens of White House officials, advance staff and media were already in Switzerland preparing for his arrival.

The Burgenstock Resort is owned by Katara Hospitality, part of Qatar's sovereign wealth fund, which helped mediate the peace process.

The cancellation coincided with the most violent exchange between Israel and Hezbollah since the ceasefire was established. Hezbollah targeted Israeli forces near the city of Nabatieh, in south Lebanon, with several salvoes of rocket fire and drones overnight, following intermittent Israeli shelling on Thursday.

Israel responded with a wave of airstrikes on the city and surrounding towns, on what it said were Hezbollah targets. The strikes left at least 18 people dead and 33 wounded, according to Lebanon's Ministry of Health.

Hezbollah said it was targeting Israeli forces attempting to advance towards the foothills surrounding Nabatieh, a flashpoint where there has been intermittent fighting since the US-Iran ceasefire was announced.

The killing of the Israeli soldiers prompted anger within Israel. The national security minister, Itamar Ben-Gvir, said in a statement that the blood of Israeli soldiers and the security of its citizens were not up for bargaining, and that all of Lebanon must burn.

The French foreign minister, Jean-Noël Barrot, called on Israel to halt its strikes in Lebanon. Speaking on France Info radio, he said the agreement provided for a cessation of hostilities, that the Israeli government must respect it, and that the United States in particular must exert the necessary pressure to ensure compliance.

Iran's supreme leader, Ayatollah Mojtaba Khamenei, said on Thursday that he had approved the MoU despite reservations, while the United States officially lifted its naval blockade of Iranian ports. The US military said American warships would remain in the general area.

Before the talks were cancelled, Iran's semi-official Tasnim news agency said Iranian negotiators needed to see signs that the US was implementing the interim agreement before further rounds could begin, and that there was no confirmation its delegation would travel.

The cancellation followed a report from Al Mayadeen, an Arabic-language network politically allied with Hezbollah, that Tehran was delaying sending its delegation owing to Israel's ongoing military campaign in Lebanon.

Israel, which was not included in the talks and has distanced itself from the agreement, continued fighting in Lebanon and launched fresh airstrikes early on Friday, accusing Hezbollah of violating the ceasefire. The armed group has made the same accusation against Israel.

Hezbollah said on Friday that its fighters had destroyed three Israeli tanks in the south and that clashes were ongoing. Israel had not confirmed that its tanks were hit.

Iran's chief negotiator, Mohammad Bagher Ghalibaf, warned against any breach of the agreement. According to the official IRNA news agency, he said that in the event of misconduct or excess by the other side, a decisive response would be given.

Fighting began in Lebanon on 2 March, when Hezbollah launched rockets at Israel in what it said was revenge for the killing of Iran's supreme leader by the US and Israel. The subsequent Israeli invasion and bombing campaign has left more than 3,900 people dead in Lebanon.

Hezbollah has killed at least 32 Israeli soldiers in Lebanon and three Israeli civilians.

On Thursday, Israel announced a so-called security zone in south Lebanon, comprising hundreds of square miles of Lebanese territory. Israeli Prime Minister Benjamin Netanyahu said the military would remain there as long as Israel's security needs required.

Lebanese officials have demanded a complete withdrawal of Israeli forces, which Iran said was required by the MoU. The agreement calls for the permanent termination of the war in Lebanon and for the country's territorial integrity and sovereignty to be ensured.

President Donald Trump has said he expects a complete ceasefire on all fronts. Israel has so far insisted it will not withdraw its troops, drawing open criticism from both Trump and Vance.

Vance said on Thursday that Israel needed to respect the peace process. He said the president had grown frustrated that breakthroughs appeared imminent before major explosions in civilian population centres cost the lives of people unconnected to Hezbollah, describing such actions as not acceptable.

In sharper comments before the postponement, Vance said that were he in the Israeli cabinet, he might not attack the only powerful ally Israel had left anywhere in the world.

Amid concern over the stability of the deal, mediators including Pakistan, Saudi Arabia and Turkey agreed to gather for talks in the Egyptian city of Alamein on Sunday, 21 June 2026, according to Cairo and Islamabad.

The diplomatic back-and-forth adds to uncertainty over whether a lasting truce can be reached in a regional war that has killed at least 7,000 people, sent energy prices soaring and shaken global markets.

The MoU gives negotiators 60 days to reach agreement on the status of Iran's nuclear programme, unless both sides agree