High-level peace negotiations between the United States and Iran in Switzerland have extended into their second day, marred by immediate diplomatic friction following public threats from President Donald Trump.
The Iranian delegation announced the re-closure of the Strait of Hormuz during the opening session, a move that directly contradicts the de-escalation goals of the talks and reignites fears of a prolonged shipping disruption in the Gulf region.
President Trump responded to Tehran’s announcement by warning of "massive" military consequences if Iran fails to accelerate negotiations and reopen the waterway.
The exchange highlights the fragile nature of the current diplomatic effort, with both sides trading hardline rhetoric rather than concrete concessions.
The re-closure of the Strait, which carries roughly a fifth of the world’s oil supply, represents a significant escalation in leverage tactics, even as formal talks continue in Buergerstock.
Markets are reacting to the renewed uncertainty, with Brent crude prices holding firm amid concerns over supply chain bottlenecks.