In a statement on Friday, the ministry once again affirmed Iran’s commitment to the path of diplomacy and its readiness to continue the negotiations with the United States.

“The Islamic Republic of Iran… will never tolerate, under any circumstances, the approaches based on threats and pressure, which are all in breach of the principles of the United Nations Charter and international law,” it said.

Such approaches have been designed to harm Iran's national interests and violate the human rights of the Iranian people, it added.

The warning came after the US State Department sanctioned seven entities in the United Arab Emirates, Turkey and Iran for trading Iranian petroleum and petrochemical products.

The sanctions are the latest round imposed by the administration of President Donald Trump on Iran since February, when he reimposed his so-called maximum pressure campaign on Tehran.

The Iranian Foreign Ministry strongly condemned continued unlawful sanctions and pressure on Iran’s trade and economic partners, which exposed that the Iranian people are right to be deeply suspicious of the US's seriousness in the path of diplomacy.

It said the continuation of such illegal behavior would make no change in Iran's logical and legitimate positions which are based on international law.

"Undoubtedly, retesting unsuccessful methods and tactics will lead to no outcome but a repetition of the same costly failures,” the statement warned.

Following Trump’s letter to Leader of the Islamic Revolution Ayatollah Seyyed Ali Khamenei and the announcement of readiness to pursue the path of diplomacy in order to resolve the unnecessary and artificial crisis over Iran's peaceful nuclear program, Tehran engaged in indirect dialogue with Washington based on goodwill backed by national power and confidence, it explained.

It noted that during three rounds of talks, the Iranian negotiators outlined the country’s positions and legitimate demands and made serious efforts to reach a fair, reasonable, and sustainable agreement.

According to the ministry, the Iranian negotiating team has been pursuing a specific framework based on Iran's principled approaches under international law regarding the peaceful use of nuclear energy and the termination of unjust sanctions.

Iranian Foreign Ministry spokesman Esmaeil Baghaei on Thursday warned of the consequences of the US's contradictory behavior and provocative positions.

"The sanctions that have been announced over the past few days under various pretexts against Iranian and non-Iranian individuals and companies are a clear sign of American policymakers' insistence on breaking the law and violating the rights and interests of other countries, as well as their efforts to disrupt friendly and legal relations between developing countries through economic terrorism," he said.

In a post on his Truth Social platform on Thursday, Trump threatened to slap secondary sanctions and cut off business with the countries that purchase Iranian oil or petrochemicals.

“All purchases of Iranian Oil or Petrochemical products must stop, NOW!” Trump said.

During his first term in office, Trump withdrew the United States in 2018 from the 2015 nuclear deal, formally known as the Joint Comprehensive Plan of Action (JCPOA), and launched a maximum pressure campaign against the country.

Trump restored that policy after returning to the White House for a second term in January, but he has since signaled a willingness to make a new deal to replace the deal.

On March 12, Trump sent a letter to Iran’s leadership, asking for negotiations to reach a new deal.