U.S. Blockade of Iranian Ports Continues Pending Friday Ceasefire Signing

The U.S. blockade of vessels traveling to or from Iranian ports remains in effect pending formal execution of a ceasefire agreement scheduled for signing Friday, a U.S. military advisory stated Monday. The advisory warned merchant ships that the blockade restricts all inbound and outbound traffic and directed captains not to attempt passage until explicit instructions are issued.

It also cautioned crews to consider health and safety risks, noting that noncompliance could lead to disabling or destructive fire.

Trump announced the preliminary agreement on Sunday, his 80th birthday, stating that passage through the Strait of Hormuz would be permanently toll free and that ships are already beginning to move. The deal was reached electronically between the U.S. and Iran, with a memorandum of understanding signed by Trump and Vice President Vance.

Senior U.S. officials told reporters Monday that the full details of the memorandum will be released within 24 to 48 hours. Technical discussions led by Vance are expected later this week, followed by the physical signing in Geneva on Friday.

The United States and Iran concluded a peace deal on 14 June 2026 that mandates an immediate and permanent ceasefire and the reopening of the Strait of Hormuz. The agreement affects maritime traffic through the waterway, which carries roughly one-fifth of global oil shipments.

Under the terms, both parties must halt military operations and restore normal transit. A standing negotiation framework begins immediately to address remaining bilateral issues, including Iran's nuclear program, over the next 60 days. The U.S. will maintain its current force posture in the region during that period.

The Secretary-General of the United Nations issued a statement welcoming the deal and crediting Pakistan, Qatar, Egypt, Saudi Arabia, Türkiye, and other regional states with supporting the negotiations.