US Secretary of State Marco Rubio has issued a stark warning that Iran's plan to impose fees on vessels transiting the Strait of Hormuz could precipitate widespread disruption across global shipping lanes.

Speaking in Manama on Thursday, Rubio cautioned that such measures would not remain isolated, warning that the precedent could spread like a contagion to other critical waterways.

Tehran has characterized the proposed charges as "maritime service fees" rather than tolls, a distinction that does little to assuage concerns among Western officials and global shippers.

The Strait of Hormuz remains a vital chokepoint for global energy flows, and any attempt to monetize passage through the channel threatens to destabilize freight rates and insurance premiums for tankers and cargo vessels alike.

The comments come as tensions persist in the region, with Iran previously signaling that the Strait would not return to its pre-war status despite recent peace agreements.

This hardening stance suggests that Tehran views control over the waterway as a strategic lever, regardless of diplomatic progress elsewhere.