If nations buy Iranian oil, then they will be subject to secondary sanctions: Trump threatens after US-Iran nuclear talks delayed

US President Donald Trump on Thursday threatened to impose sanctions on any buyer of Iranian oil and said that they will not be allowed to do business with the United States in any form, after a planned round of nuclear talks was delayed.
In a post on Truth Social, Trump said, "All purchases of Iranian Oil, or Petrochemical products, must stop, NOW! Any Country or person who buys ANY AMOUNT of OIL or PETROCHEMICALS from Iran will be subject to, immediately, Secondary Sanctions. They will not be allowed to do business with the United States of America in any way, shape, or form. Thank you for your attention to this matter, PRESIDENT DONALD J. TRUMP."

Following the postponement of planned nuclear negotiations in Oman this weekend, tensions have escalated. Omani Foreign Minister Badr al-Busaidi announced via X platform: "For logistical reasons we are rescheduling the US Iran meeting provisionally planned for Saturday May 3rd," he wrote. "New dates will be announced when mutually agreed."

The Omani mediator offered no additional details, whilst Iran's Foreign Ministry spokesperson Esmail Baghaei confirmed the postponement was at Oman's request, affirming Iran's dedication to achieving an equitable agreement.
A source close to American negotiators indicated the US had not confirmed attendance at a fourth round in Rome, though discussions were anticipated shortly. The source, speaking anonymously due to the confidential nature of talks, shared these insights as Rome prepares for the Vatican conclave on Wednesday to select a successor following Pope Francis's death.
The negotiations aim to restrict Iran's nuclear capabilities in exchange for relief from American economic sanctions, amidst decades of hostility. Iranian Foreign Minister Abbas Araghchi and US Mideast envoy Steve Witkoff have been leading these discussions.
Amidst heightened tensions, Trump has threatened military action against Iran's programme without a deal. Iranian authorities suggest they might pursue nuclear weapons development, given their current stockpile of highly enriched uranium.
The 2015 international nuclear agreement previously restricted Iran's programme until Trump's 2018 withdrawal, leading to regional instability. Current tensions are further complicated by the ongoing Israel-Hamas conflict in Gaza.
The US continues its "Operation Rough Rider" against Iranian-backed Houthi rebels in Yemen. US Defence Secretary Pete Hegseth issued a stern warning to Iran: "Message to IRAN: We see your LETHAL support to The Houthis. We know exactly what you are doing," he wrote. "You know very well what the US Military is capable of - and you were warned. You will pay the CONSEQUENCE at the time and place of our choosing."

The recent negotiations coincided with a devastating explosion at an Iranian port, resulting in 70 fatalities and over 1,000 injuries.