Iran Declares Hormuz Closed, Ships Report Gunfire

Iran's Navy broadcast a radio message to merchant vessels in the Strait of Hormuz declaring the chokepoint closed and prohibiting ships from transiting, while vessels attempting to cross reported coming under gunfire. The Strait of Hormuz is the world's most critical energy chokepoint, through which roughly one-third of seaborne oil and a significant share of global LNG passes daily, making any interdiction there an immediate pricing and supply event. The broadcast signals a deliberate Iranian posture, using a formal naval communication channel to assert sovereign-style control over an international waterway, rather than an ad hoc incident. If commercial traffic halts or reroutes, insurers will reprice war-risk premiums sharply upward, tanker operators will face impossible routing decisions, and buyers of Middle Eastern crude and LNG will scramble for alternative supply. The duration and enforcement capacity of Iran's stated closure, and how quickly the U.S. Navy or allied forces respond, are the variables that will determine whether this is a pressure tactic or the opening of a sustained blockade.