Nuclear Energy

As part of previous negotiations aimed at ending its war on Iran, the United States offered to sell Tehran uranium for use in a civilian programme, but Iran refused, a top US official said on Sunday.

“Heck, our negotiators even offered to sell them uranium,” US Ambassador to the United Nations Mike Waltz said on NBC’s Meet the Press. He said the agreement would have been akin to that with the United Arab Emirates, which has “a peaceful programme, right there in their neighbourhood, and they abide by international law and inspection regimes”.

Waltz said the administration of US President Donald Trump was open to allowing Iran to keep a civilian nuclear programme, provided it agreed to its obligations in accordance with international law and the Nuclear Non-Proliferation Treaty (NPT).

There were “a number of ways” President Trump was open to dealing with Iran to ensure it did not have access to highly enriched uranium, or the ability to reconstitute highly enriched uranium, including by having Tehran “hand over” any such material it currently has, Waltz said.

The UAE, a signatory to the NPT, generates electricity from a nuclear power plant and signed an agreement with the US in 2009. Under those agreements, the UAE has agreed not to produce enriched uranium domestically, and not to reprocess spent fuel on its own. Trump said Saudi Arabia and the US reached an agreement on civilian nuclear use this year, but details have not yet been made public, and the US president has also claimed the deal is contingent on Riyadh agreeing to the controversial Abraham Accords. Around the region, Egypt and Turkiye also operate civilian nuclear programmes.

Pakistan openly operates a nuclear arsenal, while experts have long believed Israel secretly possesses one of its own. Neither country is a signatory to the NPT.

A key point of contention between Iran and the US has been what should be done with the uranium that Tehran currently has, and how, or even if, to ensure any future supply of the material is not capable of being used for producing a nuclear weapon. Iran has insisted it has no plans to create a nuclear weapon, and any uranium it possesses and enriches is only for civilian purposes, including for generating electricity and use in medical treatments and scientific research.

Iran is estimated to have more than 440kg (970lb) of uranium enriched at 60 percent purity. Uranium enriched to around 90 percent purity is suitable for a nuclear weapon. Enriching uranium is a complex process that involves isolating the most radioactive isotope in a quantity of uranium. Under the 2015 Joint Comprehensive Plan of Action (JCPOA), Iran agreed to cap its uranium enrichment at 3.67 percent under strict international supervision in exchange for lifting sanctions against its economy. Trump scrapped that deal in 2018, saying it was too generous to Iran.

On September 10, the International Atomic Energy Agency (IAEA) said it was concerned over Iran’s “continued noncompliance” with the Nuclear Non-Proliferation Treaty, of which it is a signatory. Under the treaty, Iran agrees not to produce nuclear weapons and to meet IAEA safeguards to control its supply of uranium used for civilian purposes. The agency has not had access to key Iranian nuclear facilities since June 2025, when Israel and the US attacked sites in the country as part of a 12-day war.

Iranian officials have responded to the IAEA by saying the finding was made “under political pressure from the US and its allies”, and that they have not stopped respecting their treaty obligations, but could not allow inspections until facilities were safe from US and Israeli attacks.

At times, Trump has said he will destroy the enriched uranium Iran has or retrieve it by force. In April, the US president claimed to have convinced Iran to turn over the enriched uranium it had, which he referred to as “nuclear dust”. Iranian officials quickly dismissed those claims, saying enriched uranium would not be transferred outside the country under any circumstances.

On Saturday, Trump rejected a plan submitted by Iran to reopen the Strait of Hormuz within seven days, as Tehran continued to insist that only diplomacy can solve the conflict between the two countries. Speaking to reporters at the White House, Trump said on Saturday that Iran wants to make a deal to open the vital maritime corridor immediately only “because they are losing so badly”.

In an interview on Meet the Press on Sunday, Iran’s foreign minister, Abbas Araghchi, said that Iran is prepared for war to resume, “even if it comes to a doomsday war”.

He added, “If you ask us, there is no reason why we should go back to diplomacy. But I’m still trying diplomacy, because I think we shouldn’t miss any chance for peace.”

UN watchdog says Syria ‘failed to report nuclear material, facilities and activities’ under Bashar al-Assad’s rule.

The United Nations nuclear watchdog has confirmed that Syria tried to construct a nuclear reactor in the eastern province of Deir Az Zor under ousted former President Bashar al-Assad.

The International Atomic Energy Agency (IAEA), in a confidential report seen by news agencies on Tuesday, said it visited several sites in Syria in August and carried out verification work.

Based on observations at the Deir Az Zor site, the agency said it confirms “that the cooling infrastructure which has now been uncovered is consistent with that of a nuclear reactor”. The agency said it would continue to monitor the activities at the site “as the excavation work progresses”.

Syria was believed to have operated an extensive undeclared nuclear programme under al-Assad that included a nuclear reactor built by North Korea in Deir Az Zor.

The site only became public knowledge after Israel launched air strikes in 2007 that destroyed the facility. Syria later levelled the site and never responded fully to the IAEA’s questions about it.

Israel is believed to have its own undeclared atomic weapons programme that makes it the only country in the Middle East with nuclear bombs. Israel neither confirms nor denies having atomic weapons.

Following al-Assad’s removal in early December 2024, the new government agreed to give IAEA inspectors access to suspected former nuclear sites.

The agency took samples at the site in 2024 and reported last year that they contained uranium particles.

In its Tuesday report, the IAEA said it was also able to “establish that the former Syrian authorities had failed to report nuclear material, facilities and activities”.

Besides the nuclear reactor under construction at Deir Az Zor, the IAEA listed a fuel fabrication plant, where the nuclear fuel for the reactor was manufactured, and a location where the nuclear fuel, as well as uranium scrap and waste, were stored.

During the visit to Syria, IAEA Director General Rafael Grossi and a team of senior inspectors also visited a previously undeclared site.

The new Syrian administration notified the agency of the site’s existence in a July 17 letter and invited the IAEA “to cooperate with the Syrian authorities in the inspection and verification of the site and of any nuclear material to be potentially found”.

The IAEA said in its report that this new site contained “natural uranium metal in the form of fuel rods with cladding”.

The agency verified the material and confirmed “the presence of around 73 tonnes of natural uranium metal”. The agency reported that “all of this nuclear material is currently subject to Agency containment and surveillance measures”.

The new Syrian authorities have also expressed an interest in developing a civilian nuclear energy programme and said any nuclear material found in the country would remain in Syria’s custody under international safeguards.

The IAEA said lack of information and access to facilities to verify Iran’s nuclear material is a proliferation concern.

The International Atomic Energy Agency (IAEA) has called for “utmost urgency” to address the lack of access to Iran’s nuclear sites.

In a quarterly report seen by news agencies on Tuesday, the United Nations nuclear watchdog labelled its “lack of information about this nuclear material and access to facilities to verify it is a matter of proliferation concern”.

The US has claimed preventing Iran from acquiring a nuclear weapon – an ambition that Tehran continues to deny – as the motivation for the war that it launched in March. However, Tehran has been successful in shifting the focus of the hostilities to control of the strategic Strait of Hormuz waterway.

In particular, the IAEA report raised concerns over the lack of access to the Isfahan plant, which was targeted several times by the US and Israel over the past year or so.

In the report, IAEA Director General Rafael Grossi expressed his “conviction that the long-standing problems and recurrent crises surrounding these issues must be resolved through a long-lasting, verifiable diplomatic agreement”.

However, Iran has said that access to the sites that have been struck by military action must be arranged via special arrangement.

The head of Iran’s Atomic Energy Organization, Mohammad Eslami, said on August 26 that the IAEA “cannot seek to inspect these centres until it develops specific criteria and protocols for inspecting sites targeted by military attacks”.

Tehran suspended cooperation with the UN nuclear watchdog following US and Israeli attacks on Iran in June 2025 that included strikes on nuclear sites before saying in September 2025 it would allow the UN agency’s inspectors to return.

However, access to the nuclear sites that have been bombed has not yet been granted. Despite US President Donald Trump having claimed last year that the US had destroyed the facilities and crippled Tehran’s nuclear programme, Iran’s stores of enriched uranium remain unaccounted for.

Tehran has repeatedly denied any military ambition linked to its nuclear programme, insisting on its right to the technology for civilian purposes.

However, the IAEA, whose latest report will be discussed at its board of governors meeting from September 21-25, has reported in the past that the level of Iran’s enrichment of its uranium reserves is well above that needed for civilian purposes, although neither is it at the level of weapons grade.