Iran's Foreign Minister Mohammad Javad Zarif ridiculed US President Donald Trump on Saturday over what he called the foreign policy "blunder" of trying to raise its recent protests at the UN Security Council.
The Security Council "rebuffed the US' naked attempt to hijack its mandate," Zarif wrote on Twitter.
"Majority emphasised the need to fully implement the JCPOA [nuclear deal] and to refrain from interfering in internal affairs of others. Another FP [foreign policy] blunder for the Trump administration."
The United States had pushed for the UN meeting on Friday to discuss the five days of protests that hit Iran last week, leading to the deaths of 21 people and hundreds of arrests.
US Ambassador Nikki Haley argued that the unrest could escalate into full-blown conflict and drew a comparison with Syria.
"The Iranian regime is now on notice: the world will be watching what you do," Haley warned.
Russia's envoy shot back that, if the US view holds, the council should have also discussed the 2014 unrest in the US suburb of Ferguson, Missouri over the police shooting of a black teenager or the US crackdown on the 2011 Occupy Wall Street movement.
Britain and France reiterated that Iran must respect the rights of protesters, but French Ambassador Francois Delattre said the "events of the past days do not constitute a threat to peace and international security".
China also described the meeting as meddling in Iran's affairs, while Ethiopia, Kuwait and Sweden expressed reservations about the discussion.
Iran's Ambassador Gholamali Khoshroo slammed the meeting as a "farce" and a "waste of time" and said the council should instead focus on addressing the Israeli-Palestinian conflict or the war in Yemen.
Iranian authorities have declared the unrest over and held three days of large pro-government rallies across the country between Wednesday and Friday.
Iran signed a nuclear deal with the United States, Britain, France, Germany, Russia and China in 2015, easing sanctions in exchange for curbs to the country's nuclear programme.
President Trump has fiercely opposed the deal, but the other signatories remain firmly behind it.
Trump must decide every few months whether to continue waiving nuclear sanctions, with the next deadline due on Friday.
Analysts say there is a chance he may use the latest unrest as a pretext to reimpose sanctions.