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Iran’s joint military command said it would not allow the United States to interfere in the management of the Strait of Hormuz and warned of a forceful response to any disruption of commercial shipping.

“The Islamic Republic’s armed forces will respond forcefully to any disruption or insecurity caused by the US military to the passage of commercial vessels and oil tankers outside the designated route and without authorization from the armed forces,” said Ebrahim Zolfaghari, spokesperson for the Khatam al-Anbiya Central Headquarters.

Zolfaghari said the United States and countries cooperating with its military would bear responsibility for “all insecurity and any expansion of the war in the region.”

Control and security of the Strait of Hormuz are determined by Iran, not by US statements or warships, Hezbollah-affiliated Al Mayadeen reported, citing an unnamed senior Iranian security official.

The official warned that any repeat of recent US actions would prompt Tehran to expand the scope of its measures.

“The events of recent days confirm that the United States and its allies must abide by their commitments and accept Iran’s arrangements,” the official said.

The official also criticized US President Donald Trump over his claim that the United States had protected the strait for 50 years, saying the waterway had belonged to Iran for thousands of years before the United States existed.

US Central Command said it struck a submarine and ship maintenance facility at Iran’s Bandar Abbas Naval Base on Sunday using multiple one-way attack surface drones.

Three Corsair unmanned vessels hit the port in the first combat use of sea drones by US forces, CENTCOM said, adding that the strikes degraded Iran’s ability to attack commercial shipping.

US President Donald Trump said Monday the United States would reinstate a blockade targeting Iranian ships and customers while keeping the Strait of Hormuz open to vessels from all other countries.

“We are reinstating the THE IRANIAN BLOCKADE, so named because it is only stopping Iran’s ships or customers from entering or leaving,” he said in a post on Truth Social.

“The Hormuz Strait is OPEN, and will remain OPEN, with or without Iran,” Trump wrote, saying the measure would prevent only Iranian ships or their customers from entering or leaving the waterway.

Trump declared that the United States would become the “Guardian of the Hormuz Strait” and said Washington would charge a fee equal to 20% of all cargo shipped through the strategic passage to cover the costs of providing security.

“The process and formation will begin immediately,” he added.

Iran's Revolutionary Guards said on Monday they would continue to enforce Iran's control over the Strait of Hormuz, accusing the United States of “putting global oil and gas supplies at risk through its actions” in the strategic waterway.

“We will continue to exercise sovereignty and control over the Strait of Hormuz with strength and power,” Guards spokesperson Hossein Mohebbi said.

Mohebbi said US involvement in the strait had endangered the security of global energy supplies and that Washington “must be held accountable.”