The stern warning underscores Tehran's resolve to retain control over the Strait of Hormuz and to resist transits that bypass its authorization.

Iran’s IRGC warns that any new Hormuz shipping route announced without Tehran’s coordination is unacceptable and dangerous.

All vessels must contact IRGC Navy on the designated channel before transiting, or face enforcement action, Iran says.

Shipping traffic has remained far below prewar levels despite the U.S.-Iran interim agreement.