President Donald Trump told Fox News host Maria Bartiromo that he could “take Iran out in one day,” hours after his vice president emerged from talks in Islamabad without an agreement to end the war with Iran.

“I could take out Iran in one day… in one hour. I could have their entire energy, everything, every one of their power-generating plants, which is a big deal. I hate to do it, because if you do it, it takes ten years to build… they’ll never be able to rebuild it,” Trump added.

The president also said that he took out a bridge in Iran “just to how them because they came out with a statement.

Trump was at a UFC fight Saturday evening as JD Vance’s talks with Iranian officials failed to reach an agreement to end the month-old conflict that has already caused major ripples across the global economy.

Earlier Sunday morning, Trump made similar threats against Tehran on social media.

The president claimed that U.S. military forces would begin blockading the Strait of Hormuz and refusing free passage to any ship that pays a toll to Iran’s government to travel the strait’s waters.

“So, there you have it, the meeting went well, most points were agreed to, but the only point that really mattered, NUCLEAR, was not. Effective immediately, the United States Navy, the Finest in the World, will begin the process of BLOCKADING any and all Ships trying to enter, or leave, the Strait of Hormuz,” wrote Trump.

Vance met with Iranian negotiators for a marathon peace talk session on Saturday that ended late in the evening with the former Ohio senator claiming that some positive developments occurred, while he affirmed that no deal to end the war had been reached.

“The bad news is that we have not reached an agreement. And I think that’s bad news for Iran much more than it’s bad news for the U.S.,” Vance told reporters Saturday evening.

Trump’s statement the following morning affirmed that the major sticking point in the talks remains Iran’s nuclear ambitions. The president earlier claimed that Iran had agreed to abandon its nuclear prospects entirely.

As recently as Friday, Trump wrote on Truth Social that Iran and the U.S. had agreed to “many” points of a 15-point peace plan, including the position that “there will be no enrichment of uranium” by Iran.

This latest ceasefire is due to end a week from Tuesday. It was brokered after the tenor of Trump’s threats reached a point of directly threatening the destruction of Iranian “civilization” via American military might, threats that were taken by many as an endorsement of war crimes or even genocide.

A slew of Democratic lawmakers came out in the hours leading up to the ceasefire, calling for impeachment or Trump’s removal via the 25th Amendment.

Sunday’s post stopped short of those dark threats towards Iranian society as a whole and instead warned of an entirely different dynamic: Permanent U.S. naval control of the waters on either side of the Strait of Hormuz.

Iran mined the strait after the war began in late February and restricted shipping traffic through the waterway to vessels flagged to countries aligned with Iran’s government. The closure led to a sharp spike in global oil prices, causing gas prices to jump by more than a dollar per gallon on average in the United States.

Since the beginning of the conflict, Trump proved unable to convince a global coalition of navies to join his efforts to open up the strait and counter Iran’s devastating economic warfare. Now, the president is taking a different tack by threatening U.S. naval interdiction of any ship that pays a toll to access the strait, a threat that could put the U.S. in conflict with vessels flagged around the world.

“I have also instructed our Navy to seek and interdict every vessel in International Waters that has paid a toll to Iran. No one who pays an illegal toll will have safe passage on the high seas,” said the president.

That threat could easily rankle Trump’s European allies, who have already shown a clear unwillingness to get involved in the conflict as the U.S. president has begged NATO and the Gulf states for aid.