The United States' maritime blockade in the Strait of Hormuz will begin at 10 a.m. ET (5 p.m. in Israel), US President Donald Trump said in a Monday morning Truth Social post.
On Sunday, US Central Command (CENTCOM) announced the beginning of the blockade in accordance with Trump's decision.
"The blockade will be enforced impartially against vessels of all nations entering or departing Iranian ports and coastal areas, including all Iranian ports on the Arabian Gulf and Gulf of Oman," CENTCOM announced, adding that vessels transitioning from and to non-Iranian ports would not be stopped.
The announcement also said that a Notice to Mariners broadcast would be sent before the blockade effectively begins, with vessels urged to contact US forces using "bridge-to-bridge channel 16 when operating in the Gulf of Oman and Strait of Hormuz approaches."
Trump said on Monday that, after the failure during the first round of negotiations between the US and Iran, the American Navy would block the Strait "effective immediately," with all ships coming and going from Iranian ports being stopped.
He also accused Iran of extorting the world by claiming to have placed mines in the Strait, saying that "nobody knows about but them [the mines]."
"We will also begin destroying the mines the Iranians laid in the Straits. Any Iranian who fires at us, or at peaceful vessels, will be blown to hell," Trump added.
Finally, Trump said that other countries, along with the US, would be involved in the blockade, without mentioning which countries would actually participate.
Iran Foreign Minister Abbas Araghchi reacted to the blockade by calling it "maximalism," and accusing the US of "shifting goalposts" during the negotiations in Islamabad last week. "Zero lessons learned," he said in his social media statement.
The Strait of Hormuz will "forever remain under the control of Iran and the region," Iranian Defense Ministry spokesperson Reza Talai told Iranian media on Sunday night, adding that "Iran is stronger and more resilient today. The enemy has failed to overthrow our regime and divide the country."
Trump says there is 'great dishonor to reputation of Iran' after Hormuz closure
In a separate statement, Trump said that "there is great dishonor and permanent harm to the reputation of Iran," after the regime claimed to have placed mines in the Strait of Hormuz.
He also added that the main reason why the negotiations failed in Islamabad was the regime's nuclear ambitions.
"In many ways, the points that were agreed to are better than us continuing our military operations to conclusion, but all of those points don’t matter compared to allowing nuclear power to be in the hands of such volatile, difficult, unpredictable people," Trump explained.
He also said that the US delegation, which was led by US Vice President JD Vance, and US Special Envoys Jared Kushner and Steve Witkoff, "became, not surprisingly, very friendly and respectful of Iran’s Representatives, Mohammad-Bagher Ghalibaf, Abbas Araghchi, and Ali Bagheri."
But concluded that, in the end, the talks didn't matter as the regime wasn't willing to accept a solution that included the total dismantlement of its nuclear program.