Iran's Islamic Revolutionary Guard Corps (IRGC) said the waterway was closed until further notice and launched attacks on US bases and allies in the region. The IRGC said it had hit a US base in Jordan, while the United Arab Emirates, Qatar, Kuwait and Bahrain all responded to missiles and drones from Iran. It comes after incidents this week in which three commercial tankers were attacked, prompting an exchange of strikes between the US and Iran.

On Sunday, state media said Iran had closed the Strait until further notice after firing a naval cruise missile at a vessel that was attempting to sail along an unapproved route. The Guards said the vessel was "hit by warning shots and stopped" after ignoring repeated instructions, according to a statement carried by the state news agency.

It also warned that any US "aggression" as a result of the closure would be responded to with "severity" and new bases in the region would be targeted. Iran's parliamentary speaker Mohammad Bagher Ghalibaf, who is also the country's chief negotiator with the US, wrote on X that the "era of one-sided deals is OVER".

He went on: "We told you: keep your word or pay the price. Reality is knocking." Launching a third round of strikes this week, US Central Command on  the IRGC "blatantly attacked" a Cyprus-flagged vessel in the Strait of Hormuz. (BBC)