Iran has called US President Donald Trump “delusional” after he proclaimed the Strait of Hormuz a “new US territory.”

Trump made the claim on the strategic waterway, which remains heavily disrupted due to the ongoing standoff, in a post on Truth Social on Tuesday. The US president shared a map of the strait and its environs with an area circled out and labeled as “New territory of the United States.”

The post promptly elicited a reaction in Tehran, with Deputy Foreign Minister Kazem Gharibabadi condemning Trump’s “delusions” and warning Iran would “correct” them. At the same time, he commended Trump for managing to “correctly write the name of the eternal Persian Gulf,” apparently referring to the reported intentions of the US president to rebrand the waterway as the ‘Arab Gulf.’

The exchange comes as negotiations between Washington and Tehran remain stalled, while the two-month window to reach peace expired on Monday. Shortly after laying claim to Hormuz, Trump confirmed that “no talks or conversations going on, or scheduled” with Iran. “The naval blockade remains in full force and effect. The Hormuz Strait is open and operating. All water mines have been removed or detonated,” the US president claimed in a subsequent Truth Social post.

On Monday, Trump threatened to attack US ally Oman and “bomb the sh*t out of it” should it “get in the way” of his purported effort to end the conflict with Iran. While Muscat has been playing a major role in mediating the talks between the US and Iran, it has been conducting parallel negotiations with Tehran on establishing a joint mechanism to govern the Strait of Hormuz.

Iran has been seeking to collect tolls for safe passage through the waterway on a permanent basis and has reached an “understanding” with Oman on the matter, Iranian Foreign Ministry spokesman Esmaeil Baghaei said on Monday. The US has ruled allowing Iran to charge fees for passing through the strait, signaling it would continue to block Iranian ports indefinitely unless it relinquishes the demand.