US-Iran War Highlights: Iran and US make opposing claims on Strait of Hormuz ahead of talks in Switzerland

In Washington, JD Vance confirmed that Jared Kushner and Steve Witkoff were already in Switzerland and have been working through technical details of the negotiations on Iran's nuclear programme.

A general view shows rubble from buildings destroyed in Israeli strikes along the waterfront in the southern port city of Tyre, Lebanon, Friday, June 19, 2026. (AP Photo)A general view shows rubble from buildings destroyed in Israeli strikes along the waterfront in the southern port city of Tyre, Lebanon. (AP Photo)

Fresh uncertainty gripped the fragile US-Iran peace process Saturday after Iran announced it was closing the Strait of Hormuz, citing continued Israeli attacks in Lebanon and accusing Washington of failing to uphold its commitments under this week’s interim agreement. The US rejected Tehran’s claim, saying commercial traffic continued to flow through the strategic waterway, which handles a significant share of global oil shipments. The dispute emerged as Iranian negotiators departed for Switzerland for the next round of talks aimed at turning the temporary agreement into a broader settlement.

Lebanon violence threatens fragile ceasefire

The diplomatic tensions coincided with renewed violence in Lebanon, where Israeli strikes killed at least 20 people on Saturday, according to Lebanese authorities, less than a day after a ceasefire with Hezbollah took effect. Israel said it launched the attacks after Hezbollah fired more than 50 projectiles at its forces overnight, while Hezbollah accused Israel of repeated violations of the truce and warned that continued attacks would not go unanswered. The fighting has raised fresh doubts about whether the ceasefire can hold.

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