US-Iran talks begin in Switzerland as Tehran says it closed Strait of Hormuz

June 21, 2026

The United States and Iran have initiated direct negotiations in Switzerland following Iran's announcement that it has closed the Strait of Hormuz for the second time, citing Israeli military operations in southern Lebanon as a violation of their recent agreement. US Vice President JD Vance and Iranian officials, including the foreign minister and parliamentary speaker, are meeting with Pakistani mediators to address nuclear concerns and the Lebanon ceasefire situation. While Iran claims the strait is closed due to alleged US violations of their 14-point understanding, American military officials maintain that maritime traffic continues flowing normally through this critical waterway.

Who is affected

Iranian government officials (Parliamentary Speaker Mohammad Bagher Ghalibaf and Foreign Minister Abbas Araghchi)
US Vice President JD Vance and the US government
Pakistani mediators (PM Shehbaz Sharif and army chief Asim Munir)
Israeli Defense Forces and Israeli soldiers (four killed)
Hezbollah militia members (dozens killed according to IDF)
Lebanese civilians (47 killed on Saturday; 4,057 total since March 2)
Global energy markets and oil customers
Merchant shipping companies (55 ships transited on Saturday)
Major Middle Eastern oil and liquefied natural gas producers

What action is being taken

Direct talks between the US and Iran are currently occurring in Bürgenstock, Switzerland
Pakistan is actively mediating the negotiations
The US military is monitoring the Strait of Hormuz situation
Maritime traffic continues to flow through the strait (55 merchant ships transited Saturday with over 17 million barrels of oil)
Israel and Hezbollah are continuing to exchange fire despite the announced ceasefire
Israeli forces are conducting operations in Lebanon and have struck 80 Hezbollah-linked targets

Why it matters

This situation is significant because it involves critical global energy infrastructure, as the Strait of Hormuz handles approximately 20 million barrels of oil per day worth nearly $600 billion annually. The negotiations address not only regional security concerns involving Israel, Lebanon, and Hezbollah, but also the broader US-Iran relationship including nuclear issues. The ongoing violence in Lebanon has resulted in thousands of casualties, and the conflict threatens to undermine the initial US-Iran agreement signed earlier in the week. Any disruption to the Strait of Hormuz sends shockwaves through global energy markets, affecting economies worldwide.

What's next

The US and Iran have committed to further talks over the next 60 days to reach a final deal beyond their initial agreement. The immediate goals include making progress on nuclear issues and the Lebanon ceasefire situation, with the broader objective of ensuring regional safety and security for both Israel and Lebanon.

Read full article from source: BBC