Overview
- U.S. and Iranian delegations met in Bürgenstock, Switzerland on Sunday to start technical talks to implement a preagreement that creates an initial renewable 60-day period to consolidate a final accord.
- Iranian state media reported that Tehran's team briefly left the negotiation venue in protest after President Trump posted threats on Truth Social, though mediators from Qatar and Pakistan said discussions later resumed.
- Iran's armed forces announced the closure of the Strait of Hormuz in response to continued Israeli operations in Lebanon, while U.S. Central Command reported that merchant shipping continued to transit the waterway.
- Tehran has made implementation conditional on an Israeli halt to operations in Lebanon and on concrete guarantees for Iran such as the release of frozen assets and restoration of oil export rights.
- With mediators pressing to keep the 60-day clock alive, the talks remain fragile and carry immediate stakes for civilian safety in Lebanon and for global oil flows if the closure of Hormuz or frontline fighting expands.