Iran’s latest escalation has rattled global energy markets after ships reported receiving radio warnings that passage through the Strait of Hormuz is “not allowed,” a message attributed by an EU naval mission source to Iran’s Revolutionary Guards even as Tehran has not formally declared a closure. The alarm has driven fresh security concerns across the Gulf and prompted parts of the shipping and energy industry to pause or reroute movements, with some crude and LNG shipments reportedly put on hold and vessel traffic slowing around the chokepoint. With Hormuz handling a significant share of the world’s oil flows, any sustained disruption risks immediate price spikes and broader supply-chain shockwaves.