Letter to UN chief, UNSC comes after Trump says US will intervene if Tehran violently suppresses protests.

Iran’s United Nations ambassador Amir Saeed Iravani has written to the UN secretary-general and the president of the UN Security Council (UNSC), urging them to condemn “unlawful threats” towards Tehran from United States President Donald Trump amid ongoing protests in the country.

The letter sent on Friday came hours after Trump said the US was “locked and loaded and ready to go” if any more protesters were killed in the ongoing demonstrations in Iran over the cost of living.

Iravani called on UN chief Antonio Guterres and members of the UNSC to “unequivocally and firmly condemn” Trump’s “reckless and provocative statements”, describing them as a “serious violation” of the UN Charter and international law.

“Any attempt to incite, encourage or legitimise internal unrest as a pretext for external pressure or military intervention is a gross violation of the sovereignty, political independence and territorial integrity of the Islamic Republic of Iran,” Iravani said in the letter, which was published in full by the IRNA state news agency.

The letter added that Iran’s government “reiterates its inherent right to defend its sovereignty” and that it will “exercise its rights in a decisive and proportionate manner”.

“The United States of America bears full responsibility for any consequences arising from these illegal threats and any subsequent escalation of tensions,” Iravani added.

IRNA reported earlier that protests continued across Iran on Friday, with people gathering in Qom, Marvdasht, Yasuj, Mashhad, and Hamedan as well as in the Tehran neighbourhoods of Tehranpars and Khak Sefid.

The protests have swept across the country after shopkeepers in Iran’s capital Tehran went on strike on Sunday over high prices and economic stagnation.

At least nine people had been killed and 44 arrested in the unrest. The deputy governor of Qom province on Friday said that another person had died after a grenade exploded in his hand, in what the governor said was an attempt to incite unrest.

In his post on Truth Social, Trump said that if Iran “violently kills peaceful protesters, which is their custom, the United States of America will come to their rescue”.

Ali Larijani, secretary of the Supreme National Security Council, shot back that US interference “is equivalent to chaos across the entire region and the destruction of American interests”.

Iran’s economic woes, including a collapsing currency and high inflation rates, follow years of severe drought in Tehran, a city with a population of some 10 million people, compounding multiple ongoing crises.

Iranian leaders have struck a surprisingly conciliatory tone in response, with President Masoud Pezeshkian saying the government is at “fault” for the situation and promising to find solutions. Observers have noted the response is markedly different from the harsh reaction to past protests in the country.

The United States bombed three Iranian nuclear sites in June this year during a 12-day escalation between Israel and Iran. Trump described the operation as a “very successful attack”.

Last week, during a news conference with Israeli Prime Minister Benjamin Netanyahu, Trump said the US will “knock the hell out” of Iran if it advances its nuclear programme or ballistic weapons programme.

The statement came amid an Israeli push to resume attacks on Iran.

Pezeshkian has pledged a “severe” response to any aggression.