Iranian President Masoud Pezeshkian said a newly announced ceasefire with the United States had been violated after Iran's Lavan and Siri islands were bombed. Iran also renewed restrictions at the Strait of Hormuz and linked the truce dispute to Israel's large-scale attacks in Lebanon.
The confrontation emerged less than a day after the two-week ceasefire was announced. Pezeshkian confirmed the strikes on the two Iranian islands but did not identify who carried them out. Parliamentary Speaker Mohammad Bagher Ghalibaf separately cited Israel's campaign in Lebanon, a drone entering Iranian airspace and rejection of Iran's claimed right to enrich uranium as breaches of the arrangement.
Washington and Israel disputed Tehran's interpretation. President Donald Trump described Israel's conflict with Hezbollah in Lebanon as separate from the US-Iran ceasefire. Vice President JD Vance said the disagreement appeared to result from a genuine misunderstanding, while Israeli Prime Minister Benjamin Netanyahu also said Lebanon was not covered.
Pakistan, which helped mediate the pause, presented a different account. Prime Minister Shehbaz Sharif had said the agreement applied across the conflict's fronts and explicitly included Lebanon. He called on all parties to observe the ceasefire, warning that violations would undermine the search for a broader settlement.
Iranian authorities said ships still needed permission to transit the Strait of Hormuz. US officials disputed reports that the passage had closed, saying traffic had increased and that private messages indicated it remained open. Both sides had previously described reopening the waterway as part of the pause, but they differed over who would control passage and under what conditions.
The disagreement extended to the nuclear issue. Iran released a 10-point account that included continued control of the strait, acceptance of enrichment and an end to attacks across the region. Trump said there would be no uranium enrichment and rejected public descriptions that did not match Washington's terms. Those incompatible accounts exposed how little of the deal had been mutually documented in public.
In Lebanon, Israel said it had struck more than 100 Hezbollah command centers and military sites in what it called its largest bombing wave of the conflict. Lebanese authorities reported heavy casualties and damage in Beirut and elsewhere. Iran threatened a response if the attacks continued, while Hezbollah initially urged restraint.
The ceasefire therefore faced simultaneous disputes over geography, navigation and nuclear policy. With planned Iran-US talks in Islamabad still ahead, each side was operating from a materially different understanding of what the pause required. The situation also created immediate risks for commercial shipping and Gulf states. Iran linked safe passage to coordination with its armed forces, while Washington expected the strait to open without accepting Tehran's broader 10-point account. Reports of Iranian projectiles aimed at Gulf partners further complicated efforts to stabilize the pause.
