Former President Donald Trump on Monday accused Iran's leadership of being "unbelievably duplicitous," alleging that Iranian officials privately sought a meeting with the United States before publicly denying that any negotiations were taking place. The criticism comes days after Trump called off a planned large-scale military operation against Iran.

In a social media post, Trump stated that Iranian officials had pursued talks with the U.S. but then insisted they were only communicating with Oman regarding plans for the Strait of Hormuz. "They ask for a meeting, some would say ‘beg,’ talks begin, with more scheduled in the immediate future, and they say, openly and proudly, that they’re not having any discussions, that nothing is being talked about, and they’re only dealing with ‘Oman,'" Trump wrote.

Trump also dismissed Iran's claims of controlling the Strait of Hormuz, asserting that the strategic waterway is effectively under U.S. control due to an American naval blockade. "They … give their usual blather in saying, the Strait of Hormuz will be operated powerfully by them, when it is already completely controlled by the United States Navy and our ‘Blockade’ or, as some say, ‘The United States Wall of Steel!’ he said.

He reiterated that nothing would reach Iran without U.S. permission, demanding "total surrender" from Tehran if a deal could not be reached. "Nothing gets through to Iran, unless we want it to, and nothing will get through, unless a Deal, or Total Surrender, is accomplished," Trump stated.

Trump's remarks followed his decision to cancel a military operation over the weekend, which he described as the largest since World War II, opting instead to pursue a diplomatic resolution while maintaining the threat of force. Despite Iran's public denials, Trump maintained that negotiations are ongoing.

"Whether Iran wants to admit it or not, we are, in fact, talking of a solution to a problem that they have caused, for decades," he wrote. Trump concluded by reaffirming his long-standing position that Iran will not be permitted to obtain nuclear weapons. "It is very simple. IRAN WILL NEVER HAVE A NUCLEAR WEAPON!"

Separately, Pakistani mediators indicated that no date or location had been set for further direct talks. However, Pakistan's Foreign Minister Sen. Mohammad Ishaq Dar formally invited Iranian negotiator Foreign Minister Abbas Araghchi to Islamabad at his earliest convenience, according to a statement released Monday.