Tehran's interim Friday prayer leader said the memorandum of understanding with the United States is finished and that Iran will keep the Strait of Hormuz under its own management indefinitely on July 17.

Ali Akbari holds no negotiating brief and speaks as a clerical appointee of Supreme Leader Mojtaba Khamenei; remarks made to prisoners in Tehran usually echo the line of the head office in Tehran.

Friday sermons in Tehran are coordinated centrally and function as a signalling channel for hardline positions, which makes the declaration a marker of the political space available to negotiators rather than a statement of the government's position.

"You wanted this yourselves. In the memorandum you recognised our right to manage the Strait of Hormuz, but it was obvious you would violate it," said Akbari, addressing the United States leadership.

"Negotiation and the memorandum have burned up and are out of the picture. What now governs between us and you is the armed power of the Islamic Republic's forces," he added.

He said the strait would remain under Iranian management and would not return to its previous status under any circumstances, describing it as the country's best instrument for exacting revenge against the US and Israel.

Akbari set out four stages of retaliation: killing those involved in the death of the late supreme leader, removing US bases from the region, eliminating Israel, and ending US global primacy. He said a detailed list of targets exists and that Iran regards all members of the US military as covered by it.

He said Iranian forces had struck US bases before dawn and had introduced new categories of targets. He called on regional states to use the moment to free themselves from what he described as captivity.

The IRGC said on July 17 that it had destroyed US aircraft at bases in Jordan and radar sites in Oman, describing the action as the 13th wave of Operation Nasr 2 and saying the Strait of Hormuz remained under the control of its naval force.

None of the claims on US losses have been independently verified. A third reported strike, on Zayed Military City in Abu Dhabi, rests on open-source satellite imagery, and the UAE has denied being attacked.

US forces destroyed the maritime control tower at Chabahar port on the morning of July 17, IRNA reported, the third time the structure had been targeted. Quays and operational infrastructure were undamaged and no casualties were reported. Chabahar, on the Gulf of Oman outside the strait, is Iran's only oceanic port and its main outlet for cargo that does not transit the contested waterway.

The exchange follows a five-hour CENTCOM offensive concluded in the early hours of July 14, which the US military said hit Iranian coastal defences, missile launch infrastructure, drone positions and naval capabilities at Bushehr, Chabahar, Jask, Konarak, Abu Musa and Bandar Abbas.

The IRGC responded with claimed strikes on Bahrain's Juffair base and a US-linked airbase in Jordan.

Transit through the strait has collapsed. Kpler recorded 14 vessels crossing on July 13, four of them crude tankers, against a typical daily flow of around 88.

War-risk premiums for tankers using the strait have risen to roughly eight times pre-crisis levels, with several protection and indemnity clubs withdrawing cover.

Haj Ali Akbari also said officials must form judicial, legal and diplomatic working groups to pursue the retaliation, and urged energy conservation, describing it as a revolutionary duty amid the heat and the war.