Iran has closed the Strait of Hormuz until further notice, or “until the end of American interference in this region”, according to state media.
The Islamic Revolutionary Guard Corps (IRGC) 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.
It said it had also targeted another “offending” ship in the strait with a warning shot, after it turned off its systems and diverted from Iran’s approved route.
It comes after incidents earlier this week in which three commercial tankers were attacked, prompting an exchange of strikes with the US. The US has not yet responded to the IRGC announcement.
Earlier this week, three commercial tankers were attacked as they tried to cross a US-recommended route through Omani waters. Iran has repeatedly said the only “safe” route is a separate route through its waters.
The incident prompted a series of US strikes in which 17 people were killed and 115 injured, according to Iranian officials. Iran responded with strikes on US allies in the Gulf.
The exchange raised tensions, with US President Donald Trump declaring the Iranian attacks mean the ceasefire is over. Iran’s Foreign Minister Abbas Araghchi has accused the US of violating the deal.
However, the US leader said talks would still continue and mediators were trying to revive the process. US media has reported that Iran told American officials the attacks on tankers were a mistake and blamed a rogue internal group.
American officials say they have conveyed through mediators the demand that Iran publicly state that the Strait of Hormuz, a vital international shipping route, is open and pledge to stop firing on commercial ships.
