China's state news agency Xinhua has now carried the IRGC Navy's claim that it struck three oil tankers inside the Strait of Hormuz and three US-affiliated vessels elsewhere on Saturday, in retaliation for US strikes on Iranian tankers earlier that day [1]. That claim is not new to this feed and remains uncorroborated: CENTCOM says the US carrier and destroyer Iran targeted both evaded the missiles, and UKMTO has reported no civilian tankers targeted in the strait.

What is new is the escalation warning attached to it. Ebrahim Zolfaghari, spokesman for Iran's Khatam al-Anbiya Central Headquarters, said that if "malice and insecurity against and harassment of Iranian ships, as well as the anti-Iran naval blockade continue, the strikes by the armed forces of the Islamic Republic of Iran against U.S. military vessels in the region will become more severe than before, and there is a possibility of their expansion" [1]. It is a conditional threat aimed at US naval forces, not a statement that any new attack has occurred, and no vessel names or timings were given.

Xinhua also restates the underlying standoff in terms Tehran and Washington would both recognise: since the 28 February US-Israeli strikes, Iran has restricted passage through Hormuz for vessels linked to the United States or Israel, while US forces maintain a naval blockade on traffic to and from Iranian ports [1]. The IRGC separately urged all vessels in the Gulf and near the strait not to be "deceived" into transiting via "unauthorized" routes, warning they would otherwise be targeted [1].

Treat the six-vessel claim as an allegation until UKMTO or CENTCOM confirms it. The Zolfaghari statement is worth watching as the clearest official signal yet that Tehran is threatening to widen its targets beyond shipping.