NEW YORK CITY: A UN Security Council committee tasked with overseeing sanctions on Iran remained blocked for a fourth consecutive quarter on Thursday.
Council members traded accusations over the panel’s inertia, against a backdrop of intensifying US-Iran hostilities and a landmark decision by the UN’s nuclear watchdog to refer Tehran back to the council for the first time in 20 years.
The 1737 Sanctions Committee has not met in the year since it was reestablished with the backing of most council members, and no report on its activities was presented during Thursday’s session after China and Russia once again blocked it.
The impasse has also stalled the appointment of experts to a panel, the mandate for which is due to expire on Sept. 27, that is intended to support the sanctions-monitoring work of the committee.
The dispute dates back to August 2025 when France, Germany and the UK triggered a so-called “snapback” mechanism under the 2015 Joint Comprehensive Plan of Action, commonly known as the Iran nuclear deal, to reimpose pre-2015 UN sanctions on Tehran.
China and Russia dispute the legality of that move, arguing that all sanctions lapsed on Oct. 19, 2025, with the scheduled expiration of the deal, and so the council’s consideration of the Iranian nuclear file was effectively ended.
Against this backdrop of an unresolved procedural fight, the Security Council session on Thursday was dominated by more recent developments: the International Atomic Energy Agency’s formal referral of Iran to the Security Council and the General Assembly this week; and the continuing military exchanges between Iran and the US.
The agency’s board of governors voted 23-3 on Wednesday to refer Iran over its noncompliance with international nuclear safeguards, the first such referral in two decades. China, Niger and Russia voted no and eight countries abstained.
Ambassador Jennifer Locetta, the US alternate representative for special political affairs, told the council that the IAEA “has not received information from Iran regarding the status of its declared nuclear materials or facilities” and has been denied access to carry out verification procedures.
The agency’s director general, Rafael Mariano Grossi, has again urged Tehran to engage constructively with the process, she added. Locetta dismissed Iranian claims that inspections were being blocked as a result of security concerns, noting that “Ukraine has been a worse and more constant war zone” and yet IAEA inspectors had still been able to work there throughout the conflict.
Washington, she said, would “look to partners in the coming days to weigh options” for strengthening the sanctions regime.
China’s deputy permanent representative, Sun Lei, voted against the meeting’s agenda and placed the blame for the deteriorating situation squarely on Washington. He said the US strikes and campaign of “maximum pressure” on Iran were the “primary causes” of the crisis.
A memorandum of understanding between the US and Iran in June was “undermined shortly after it took effect” by renewed military clashes, he added, and Washington had since “intensified unilateral sanctions” and “launched a new round of military strikes” against Tehran.
Beijing, he said, opposed further use of force and called for a return to efforts to reach a political and diplomatic settlement based on “equality and mutual respect.”
France’s ambassador to the UN, Jerome Bonnafont, said Iran’s stockpile of more than 440 kilograms of uranium enriched to 60 percent had “no credible civilian justification” and was sufficient for about 10 nuclear devices.
He cited the latest report by Grossi as saying the situation “raises an issue of proliferation and should be addressed with the greatest urgency.”
France backed a US-drafted resolution for the renewal of the expert panel’s mandate, Bonnafont added. He called for the full reopening to international shipping of the Strait of Hormuz, and offered a French naval presence there, alongside the UK, to help secure freedom of navigation.
Pakistan’s permanent representative, Asim Iftikhar Ahmad, told the council that the “upsurge of violence in the Middle East in the last few days” was “unsettling for the prospects of peace,” and said Islamabad was engaged in back-channel diplomacy to encourage de-escalation.
He urged “all sides to exercise restraint” and voiced concern over the continuing divisions within the council.
A memorandum of understanding between Washington and Tehran in June, which paused hostilities and set a 60-day window for a final nuclear agreement, expired on Aug. 17 without any deal.
The Strait of Hormuz remains effectively closed to international shipping, attacks on vessels have continued, and the US has revoked sanctions waivers on Iranian oil exports. A Security Council vote on renewal of the Iran sanctions expert panel’s mandate is scheduled for Sept. 17.