The move raised new doubts about a two-week U.S.-Iran ceasefire and the safety of one of the world’s busiest oil routes.
DUBAI, UAE — Iran said Wednesday that it had closed the Strait of Hormuz after Israeli attacks in Lebanon, linking the shipping threat to a dispute over whether a new ceasefire covered Israel’s campaign against Hezbollah.
The claim jolted markets, shipping companies and governments already trying to measure a fragile pause in direct fighting between the United States and Iran. At issue was not only whether tankers could safely pass through the narrow waterway, but also whether the broader truce announced this week was already starting to fray. Iranian officials and state media cast the closure as pressure on Israel and its backers after strikes in and around Beirut. Israeli officials said the pause in attacks on Iran did not apply to Lebanon, while Pakistan, which helped broker talks, publicly suggested Lebanon was part of the understandings. The gap left the ceasefire looking uncertain within hours of its announcement.
The latest turn came after Israeli strikes hit Beirut and other parts of Lebanon on Wednesday, killing more than 100 people, according to reporting carried by major news outlets and officials cited in those reports. Israel said it was pressing attacks on Hezbollah targets and made clear that its operations in Lebanon would continue. Prime Minister Benjamin Netanyahu’s office said Israel backed a two-week pause in strikes on Iran, but not a halt to the Lebanon campaign. That position matched statements from Washington, which said the arrangement with Tehran was focused on stopping direct U.S.-Iran fighting and reopening the strait. Tehran, however, argued that continued Israeli attacks in Lebanon broke the spirit, and in its view the terms, of the deal. Iranian state media then reported that the Strait of Hormuz had been closed again, a step that immediately sharpened fears of a wider energy and shipping crisis.
Even before the latest announcement, passage through the strait had not returned to normal. Shipping companies, traders and maritime analysts said vessel owners were still waiting for clear safety terms. Reuters reported that Iran had warned ships attempting unauthorized transit could be targeted, while some vessels were seeking special coordination to move through the area. One approved ship had passed, and a small number of bulk carriers also made the journey, but many operators remained cautious. Industry estimates cited in recent coverage said about 187 tankers were still inside the Gulf carrying roughly 172 million barrels of crude and refined products. Experts also said around one-fifth of global oil and liquefied natural gas trade normally moves through the strait, making any disruption there important far beyond the Gulf. The result was a standoff in which Iran said it could regulate passage, while shipowners and insurers treated the route as dangerous until they saw enforceable guarantees.
What remained unclear Wednesday was the exact meaning of “closed.” Iranian state media used sweeping language, but other reports suggested a more uneven reality: some movement had happened under Iranian oversight, while many ships remained anchored or delayed because companies did not want to risk crews or cargoes. That distinction matters because a full military blockade and a de facto shutdown caused by threats can look different on paper but have similar effects on trade. Officials in Europe and Asia were already exploring ways to restore confidence. French President Emmanuel Macron said more than 15 countries were working to facilitate access through the waterway, describing the effort as defensive and coordinated. Major carriers such as Maersk and Hapag-Lloyd were still signaling caution, and one executive estimate said it could take up to two months for traffic to normalize even if the ceasefire held. In other words, the legal status of the passage and the practical reality for commercial shipping were no longer the same question.
The wider context is a six-week regional crisis that has mixed direct confrontation with proxy warfare. The U.S. and Iran entered a temporary two-week ceasefire after fighting that killed thousands, disrupted energy flows and drew in outside mediators. Pakistan announced that talks would move to Islamabad on April 10, with senior U.S. and Iranian officials expected to take part. Yet the ceasefire’s written and unwritten terms were never publicly settled in a single document. Iran’s ambassador to the United Nations in Geneva said Tehran would approach the negotiations with caution because of deep mistrust. He also signaled that shipping through Hormuz would remain subject to Iranian military coordination and tighter rules during the truce. At the same time, Israel insisted it retained freedom to strike Hezbollah in Lebanon, which it says poses a direct threat along its northern front. That left Lebanon as the most immediate fault line in a deal that was presented as a step back from a broader war.
The legal and diplomatic path ahead is now crowded and uncertain. Negotiators are supposed to meet in Islamabad on Friday, April 10, to test whether the temporary pause can turn into a longer settlement. The United States has demanded safe passage through Hormuz as a core condition of the truce, while Iran has sought recognition of its security role in the strait and guarantees against renewed attacks. Israel has not signaled any change in its Lebanon campaign, and Hezbollah had not, by Wednesday, announced that it would observe the ceasefire terms described by Washington and Tehran. That means several tracks are moving at once: maritime security, U.S.-Iran negotiations, Israeli military operations in Lebanon and efforts by European and regional governments to keep energy exports flowing. Any new strike in Lebanon, any attack on a ship, or any breakdown in the Islamabad talks could quickly harden the crisis again.
On the ground and at sea, the tension showed up in different ways. In Beirut, rescuers and residents were digging through damaged areas after the latest strikes, while officials counted the dead and wounded. In Gulf shipping circles, the focus was on insurance, naval escorts, routing orders and whether captains would be asked to wait for further instructions rather than enter a contested chokepoint. Analysts quoted in news reports said confidence, once broken, does not return with a single political announcement. Iranian officials spoke in the language of deterrence and sovereignty. Israeli officials spoke in the language of military necessity. Diplomats in Europe and Asia spoke of stabilization and access. Those competing messages left traders, port operators and families on both sides of the region looking for a clearer signal that had not yet arrived.
By late Wednesday, the immediate picture was this: Iran said the strait was closed, Israel said Lebanon remained outside the ceasefire, and shippers were still seeking firm guidance. The next major test is the planned April 10 round of talks in Islamabad and whether traffic through Hormuz resumes in a way commercial operators trust.
Author note: Last updated April 8, 2026.