The United States renewed its offer to engage in talks with Iran on Thursday but warned it will do everything in its power "to curb malign Iranian behavior" if Tehran continues to destabilize the Middle East.
The US ambassador at the United Nations, Kelly Craft, said the Trump administration also "rejects Iran's use of nuclear brinkmanship to normalize its destabilizing behavior."
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She commented at a UN Security Council meeting on the implementation of a resolution endorsing the 2015 nuclear deal between Iran and key world powers.
Iranian Ambassador Majid Takht-Ravanchi called the US offer of unconditional talks "disingenuous." The US wants to enter dialogue from a position of strength from maintaining sanctions and maximum pressure, "and not based on equal footing," he said.
"Iran does not negotiate under the threat of a sword," Takht-Ravanchi said.
He said US implementation of the Security Council's 2015 resolution endorsing the Iran nuclear deal "will pave the way for a genuine dialogue to start."
Takht-Ravanchi said that in negotiations on the nuclear deal, Iran rejected attempts to include its legitimate defense capabilities and its role in the region. He said that "under no circumstances will Iran compromise on its security."
He also told the Security Council: "It is a shame that the US bullying has resulted in discontinuation of export of certain medicines to Iran, causing a nightmare for some patients. For instance, a European company, under the pressure of US sanctions, has stopped exporting special bandages for patients suffering from EB (epidermolysis bullosa), a rare genetic condition resulting in easy blistering of the skin."
After the meeting, a live camera at the United Nations filmed Craft come up to Takht-Ravanchi, a rare, direct diplomatic interaction between the two countries. Craft tried to shake hands with Takht-Ravanchi and his colleague, though both men bowed and folded their hands as if in prayer to acknowledge her and avoid shaking her hand.

Tensions have been incredibly high between the nations since US President Donald Trump unilaterally withdrew from Tehran's nuclear deal in May 2018. For the regime of Iranian President Hassan Rouhani, the withdrawal and reimposed sanctions have been devastating for the country's long-ailing economy. Rouhani also faces ever-increasing criticism from hard-liners and any interaction with the US could further fuel that.
Alireza Miryousefi, a spokesman at Iran's UN mission, described the interaction as "merely" a short conversation about young children affected by epidermolysis bullosa.
"It is not out of the ordinary for UN diplomats accredited to the UN to run into each other, or to have brief encounters, at HQ," Miryousefi wrote on Twitter.
However, in past years, Iranian officials have tried to avoid direct interactions with their US counterparts.
The UN political chief, Rosemary DiCarlo, told the Security Council that tensions in the region "have worryingly escalated" during 2019.
"We witnessed attacks against oil tankers, strikes against a civilian airport, and a highly sophisticated and synchronized attack against oil facilities in Saudi Arabia," she said. "Combined with acrimonious rhetoric, these developments have dangerously brought the region closer to a serious confrontation."
DiCarlo warned that "such an eventuality would be devastating and must be prevented at all costs."
The meeting followed UN Secretary-General António Guterres' recent report saying the United Nations has not been able to independently corroborate that cruise missiles and drones used in attacks earlier this year on an airport and oil facilities in Saudi Arabia "are of Iranian origin" – or were transferred from Iran "in a manner inconsistent" with the 2015 UN resolution.
DiCarlo reiterated that finding, saying the UN is still collecting and analyzing additional information on the drones and cruise missiles.
For example, she said, "we have recently received confirmation that some of the cruise missile components were, in fact, not made by the identified manufacturers but could have been copies."
The United States, Britain, France, Germany, and Israel have blamed Iran for the attacks, but Iran and Russia insist Tehran was not responsible.
Craft, the US ambassador, told the council that "there is simply no other plausible explanation."
She said only Iran could have carried out complex attacks like the ones on Saudi Aramco oil facilities in Abqaiq and Khurais on Sept. 14, which Yemen's Houthi Shiite rebels claimed responsibility for.

The weapons used didn't have the range to come from Houthi territory and the drones had "numerous characteristics in common with Iranian designs," Craft said.
She said the damage at the oil facilities "shows that the attack came from the north, not from the south, as you would expect if the Houthis were responsible."
What this means, Craft said, is that Iran "attacked a sovereign nation from its territory" which should be condemned by all nations.
British Ambassador Karen Pierce stressed the importance for the Europeans of preserving the 2015 nuclear deal with Iran, which she called "fundamental to regional and international peace and security." She added that it is essential for diplomatic efforts to continue.
Pierce expressed regret at Iran's recent steps reducing its nuclear commitments and worry at indications that Tehran is illegally transferring conventional arms, missiles, and missile technology in the region.
"We call on Iran to cease such activities, which only deepen mistrust and increase regional tensions," she said.
But Russia's ambassador, Vassily Nebenzia, told the council the "so-called evidence provided about the culpability of Iran is not persuasive and it is not corroborated in the secretary-general's report." He added that the report "is plagued by a chronic lack of evidence."
Nebenzia called the 2015 agreement between Iran and the US, Russia, China, Britain, France, and Germany "the crowning achievement of multilateralism."
"We cannot allow political pressure, economic asphyxiation, and military blackmail to prevail," he said. "The end goal needs to be the establishment of a genuinely inclusive security architecture which reflects the legitimate concerns of all countries in the region."



