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Vice President JD Vance, left, talks to Pakistan's Chief of Defence Forces and Chief of Army Staff Field Marshall Asim Munir, right, and Pakistani Deputy Prime Minister and Foreign Minister Mohammad Ishaq Dar, center, before boarding Air Force Two after attending talks on Iran in Islamabad, Pakistan, Sunday, April 12, 2026. (AP Photo/Jacquelyn Martin, Pool)
By The Canadian Press

Trump threatens Strait of Hormuz blockade after US-Iran ceasefire talks end without agreement

Apr 11, 2026 | 11:38 PM

ISLAMABAD (AP) — President Donald Trump on Sunday said the U.S. Navy would “immediately” begin a blockade of ships entering or leaving the Strait of Hormuz, after U.S.-Iran ceasefire talks in Pakistan ended without an agreement or next diplomatic steps in sight.

In his first public comments after the 21-hour talks, Trump sought to eliminate Iran’s key source of leverage in the war by exerting strategic control over the waterway that was responsible for 20% of global oil shipping before fighting began.

A U.S. blockade could further rattle global energy markets. Trump told Fox News the goal was to ensure all ships could transit: “It’s going to be all or none, and that’s the way it is.”

Trump on social media said he has “instructed our Navy to seek and interdict every vessel in International Waters that has paid a toll to Iran. No one who pays an illegal toll will have safe passage on the high seas.” Other nations would be involved in the blockade, he said, but did not name them.

Freedom of peaceful navigation is a basic principle of international maritime trade.

Iran’s Revolutionary Guard later said the strait remained under Iran’s “full control” and was open for non-military vessels, but military ones would get a “forceful response,” two semi-official Iranian news agencies reported.

During the talks, the U.S. military said two destroyers had transited the strait ahead of mine-clearing work, a first since the war began. Iran denied it.

Trump said Tehran’s nuclear ambitions were at the core of the talks’ failure. In comments to Fox News, he again threatened to strike civilian infrastructure.

Parliament speaker Mohammad Bagher Qalibaf, who led Iran’s side, addressed Trump in a new statement on his return to Iran: “If you fight, we will fight.”

No word on what happens after ceasefire expires

The face-to-face talks that ended early Sunday were the highest-level negotiations between the longtime rivals since the 1979 Islamic Revolution. Both delegations later left Islamabad.

Neither indicated what will happen after the ceasefire expires on April 22.

“We need to see an affirmative commitment that they will not seek a nuclear weapon,” said Vice President JD Vance, leading the U.S. side.

Iranian negotiators could not agree to all U.S. “red lines,” said a U.S. official who spoke on condition of anonymity because they were not authorized to describe positions on the record. These included Iran never obtaining a nuclear weapon, ending uranium enrichment, dismantling major enrichment facilities and allowing retrieval of its highly enriched uranium, along with opening the Strait of Hormuz and ending funding for Hamas, Hezbollah and Houthi rebels.

Iranian officials said talks fell apart over two or three key issues, blaming what they called U.S. overreach. Qalibaf, who noted progress in the negotiations, said it was time for the United States “to decide whether it can gain our trust or not.”

Pakistani Foreign Minister Ishaq Dar said his country will try to facilitate a new dialogue in the coming days. Iran said it was open to continuing dialogue, the state-run IRNA news agency reported.

The European Union urged further diplomatic efforts. The foreign minister of Oman, located on the Strait of Hormuz’s southern coast, called for parties to “make painful concessions.” The Kremlin said Russian President Vladimir Putin “emphasized his readiness” to help bring about a diplomatic settlement in a call with Iran’s president.

Iran’s nuclear program is a key sticking point

Iran’s nuclear program was at the center of tensions long before the U.S. and Israel launched the war on Feb. 28. The fighting has killed at least 3,000 people in Iran, 2,055 in Lebanon, 23 in Israel and more than a dozen in Gulf Arab states, and caused lasting damage to infrastructure in half a dozen countries.

Tehran has long denied seeking nuclear weapons but insists on its right to a civilian nuclear program. The landmark 2015 nuclear deal, which Trump later pulled the U.S. out of, took well over a year of negotiations. Experts say Iran’s stockpile of enriched uranium, though not weapons-grade, is only a short technical step away.

An Iranian diplomatic official, speaking on condition of anonymity because of the sensitivity of closed-door talks, denied that negotiations had failed over Iran’s nuclear ambitions. “Iran is not seeking to acquire nuclear weapons, but it has the right to nuclear energy for peaceful purposes,” the official said.

Inside Iran, there was new exhaustion and anger after months of unrest that began with nationwide protests against economic issues and then political ones, followed by weeks of sheltering from U.S. and Israeli bombardment.

“We have never sought war. But if they try to win what they failed to win on the battlefield through talks, that’s absolutely unacceptable,” Mohammad Bagher Karami said in Tehran.

Elsewhere in the region, airstrikes calmed over the past day except in Lebanon.

More questions as Israel presses ahead in Lebanon

Iran’s 10-point proposal for the talks called for a halt to Israeli strikes on the Iranian-backed Hezbollah in Lebanon. Israel has said the ceasefire did not apply in Lebanon, but Iran and Pakistan said it did.

Israeli Prime Minister Benjamin Netanyahu visited parts of southern Lebanon under Israeli control on Sunday, for the first time since the current fighting.

Negotiations between Israel and Lebanon are expected to begin Tuesday in Washington after Israel’s surprise announcement authorizing talks despite their lack of official relations. Israel wants Lebanon to assume responsibility for disarming Hezbollah, but the militant group has survived efforts to curb its strength for decades.

The day the Iran ceasefire deal was announced, Israel pounded Beirut with airstrikes, killing more than 300 people in the deadliest day in Lebanon since the war began, according to the Health Ministry.

Israel’s strikes have calmed in Beirut but attacks on southern Lebanon have intensified alongside the ground invasion renewed after Hezbollah launched rockets toward Israel in the war’s opening days.

Lebanon’s state-run National News Agency reported six people were killed Sunday in Maaroub village near the coastal city of Tyre.

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Metz reported from Ramallah, West Bank, Boak from Miami and Magdy from Cairo. E. Eduardo Castillo in Beijing, Collin Binkley and Ben Finley in Washington, Kareem Chehayeb in Beirut and Ghaya Ben MBarek in Tunis contributed.

Munir Ahmed, Josh Boak, Sam Metz, Samy Magdy, The Associated Press





by The Canadian Press