TEHRAN — Iran’s top security official announced on Monday that the country has tested a new domestically produced anti-warship missile directly over a U.S. Navy vessel, as Tehran adopts a new strategy of tightening its grip on the Strait of Hormuz and imposing a “restricted zone” in the Persian Gulf.
Mohsen Rezaei, secretary of Iran’s Supreme National Security Council, made the announcement in a televised interview on Sunday night, stating that the missile test took place in the past 48 hours.
“For the first time, we tested our anti-ship missile above an American warship,” Rezaei said. “This special missile created hell for the Americans, and they fled”.
The announcement came as Rezaei declared that the Strait of Hormuz is now “completely closed” and that U.S. claims to the contrary are “a complete lie”. 
He said Tehran has been forced to adopt a new strategy on war and negotiations following former U.S. president Donald Trump’s withdrawal from the Islamabad Memorandum.
“Before the war, billions of dollars and millions of barrels of oil passed through the strait, but now perhaps seven to eight food-carrying ships pass through,” Rezaei said. 
“In some cases, the Americans try to pass five to six ships through the rocks of Oman with their equipment off, but most hit the rocks. None pass safely, and they are damaged.” 
Rezaei also announced that Iran would declare a new “restricted zone” outside the Strait of Hormuz in the coming days, extending from the U.S. blockade line into the Persian Gulf. Any vessel attempting to pass through the strait from within the restricted zone will be placed on Iran’s sanctions list.
He said the move would create “insurance problems” for vessels and force many to turn back. “The Strait of Hormuz is becoming a sanctions zone,” he said.
The former IRGC commander said the new measures are part of a broader shift that combines military pressure with economic leverage, adding that the decision to place ships on a sanctions list is in some ways more effective than firing missiles.
Rezaei said Tehran has finalized an agreement with Oman to establish a new international corridor through the Strait of Hormuz, with entry and exit to be managed by Iran. The maps have been agreed
 upon and the deal is to be signed in the coming days.
He said Iran will only commit to keeping the strait open in return for U.S. guarantees against threats or attacks. “Iran will only commit to keeping the Strait of Hormuz open when the U.S. neither threatens nor attacks,” he said.
On the broader U.S. war on Iran, Rezaei said the confrontation lasted only one day after Trump’s declaration of a “10-day war,” citing Iran’s ability to strike U.S. bases in Jordan and Erbil that lacked air defenses. He said the United States has been defeated on three fronts — military, naval blockade, and efforts to secure international resolutions against Iran.