Iran's top diplomat said that nuclear talks with the US mediated by Oman were off to a "good start" and set to continue, lowering concerns that failure to reach a deal might nudge the Middle East closer to war.
But Iranian foreign minister Abbas Araqchi reiterated that it wanted the talks to solely focus on the country's nuclear program.
"Any dialogue requires refraining from threats and pressure. [Iran] only discusses its nuclear issue ... We do not discuss any other issue with the US," he said.
Discussions on Friday took place in the Omani capital Muscat, which involved Araqchi, US special envoy Steve Witkoff and US President Donald Trump's son-in-law Jared Kushner.
The US has wanted to expand the dialgogue to cover Iran's ballistic missiles, support for armed groups around the region and "treatment of their own people," US secretary of state Marco Rubio said on Wednesday.
A regional diplomat briefed by Iran on the talks said Iran insisted on its "right to enrich uranium" during the negotiations with the US, and its missile capabilities were not raised in the discussions.
Trump on Friday ratcheted up the pressure on Iran with an executive order imposing a 25 per cent tariff on imports from any country that "directly or indirectly" purchases goods from Iran, following through on a threat he made last month.
The White House has said the measure is intended to deter third countries from maintaining commercial ties with Iran, particularly in energy, metals and petrochemicals, sectors that remain key sources of revenue for the Iranian government.
'Very serious' talks, Oman says
Mediator Badr al-Busaidi, Oman's foreign minister, said the talks had been "very serious" and the goal was to reconvene in due course.
Despite the talks, the United States announced on Friday it was sanctioning 15 entities and 14 shadow-fleet vessels connected to illicit trade in Iranian petroleum, petroleum products and petrochemical products.
Iran's leadership remains deeply worried that Trump may carry out his threats to strike Iran after a US military buildup in the region.
Last June, the US struck Iranian nuclear targets, joining in the final stages of a 12-day Israeli bombing campaign. Iran has since said it has halted uranium enrichment activity.
The naval buildup, which Trump has called a massive “armada,” has followed a bloody government crackdown on nationwide protests in Iran last month, heightening tensions between the US and Iran.
Trump has said "bad things" will probably happen if a deal cannot be reached, increasing pressure on the Islamic Republic in a standoff that has led to mutual threats of airstrikes
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