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Overview
- Iran’s joint military command announced on Saturday that it had closed the Strait of Hormuz in response to Israeli strikes in southern Lebanon and what Tehran called US violations of the ceasefire.
- US Central Command publicly disputed that the waterway was effectively blocked, reporting 55 commercial transits on Saturday and saying shipping continued safely.
- Delegations led by US Vice‑President J.D. Vance and Iranian Foreign Minister Abbas Araqchi began talks in Bürgenstock, Switzerland, on Sunday to try to convert a provisional memorandum into a durable agreement.
- Tehran told negotiators it will forswear building a nuclear weapon while keeping its right to enrich uranium, and it conditioned further progress on a sustained ceasefire in Lebanon and sanctions relief.
- Fighting on the Lebanon frontier has flared repeatedly, including Israeli strikes that killed Lebanese soldiers and civilians, which complicates enforcement of any US‑Iran deal and could push energy prices higher if the strait is effectively blocked.