US President Donald Trump has threatened to “bomb the sh*t out of” Oman if it strikes a separate deal with Iran on control of the Strait of Hormuz, despite Oman’s key role as a mediator between Washington and Tehran.

In addition to brokering talks between the US and Iran, Omani negotiators have been conducting parallel negotiations with Tehran aimed at establishing a safe route for shipping through the Strait of Hormuz. Iran reportedly wants to charge fees for safe passage of the strait after an interim period, and Iranian Foreign Ministry spokesman Esmaeil Baghaei told reporters on Monday that Iran had reached an “understanding” with Oman on the matter.

Asked about these Omani-Iranian talks, Trump told Fox News that “if Oman gets in the way, we’ll bomb the sh*t out of them.” 

The US rejects any agreement that would involve Iran collecting tolls, and Washington has signaled that it will not lift its blockade on Iranian ports unless Tehran relinquishes this demand. Speaking in New York on Friday, Trump claimed that the Islamic Republic was “very badly defeated,” and that he would soon “be declaring the Strait of Hormuz a territory of the US.”

A memorandum of understanding signed by the US and Iran in June set a 60-day window to bring the conflict to an end and reopen the strait. The memorandum expired without a deal, and with both sides threatening escalation, on Monday. 

A senior Iranian official told Reuters that Iran is prepared “to escalate tensions in the Strait of Hormuz and wider region” if diplomacy fails, and to launch “timely and precise strikes” to break the US naval blockade if necessary. Trump did not reply directly to this threat in his comments to Fox News, but demanded that Iran “raise the white flag of surrender.”

In a post on X on Saturday, Iranian Deputy Foreign Minister Kazem Gharibabadi urged Trump to “accept the reality” that the US had suffered “strategic and heavy defeats.”

“The Strait of Hormuz has been Iranian, is Iranian, and will remain Iranian,” Gharibabadi wrote, adding that the waterway “will only be closed and opened under Iran’s command.”

US-Israeli strikes on Iran in late February prompted Tehran to close the Strait of Hormuz, with Washington responding by imposing a naval blockade of Iranian ports. The blockade disrupted traffic through one of the world’s most important energy corridors, sending global oil prices soaring to as high as $120 a barrel.