United States forces launched new strikes against Iran following an attack on a ship. Iran's Revolutionary Guards declared the Strait of Hormuz closed until further notice. These actions escalate tensions and complicate US-Iran negotiation efforts. The United States aims to impose a heavy cost on Iran for its actions. Both nations remain divided on control of the vital shipping waterway.

Iran said it closed the Strait of Hormuz after a vessel travelled on an unapproved route and was struck.

Iran announced the closure of the Strait of Hormuz "until further notice and until the end of American interventions in this region".