The International Atomic Energy Agency (IAEA) said Iran has reinstalled some monitoring equipment initially put under the 2015 nuclear deal with major powers, which Iran removed last year.
The director of the UN agency, Rafael Grossi, said in two quarterly reports that the agency was "awaiting Iran's engagement to address" issues, including installing more monitoring equipment announced months ago.
The monitoring equipment included surveillance cameras at a site in Isfahan, where centrifuge parts are made, and monitoring equipment at two declared enrichment facilities, according to the two confidential reports addressed to IAEA member states.
- Undisclosed sites
Regarding the ongoing investigation of traces of uranium in three undisclosed sites, the agency said that Iran had provided a "satisfactory answer" on one of them to explain the presence of particles there.
The report stated that the agency has no further questions, and the issue is no longer pending.
Iranian media said Tuesday that it settled two disputed cases with the IAEA, one related to finding traces of uranium at the Marivan site in Abadah, in Fars province.
The Marivan site is the first of three locations to be addressed under a work plan Iran, and the IAEA agreed upon last March. It was not reported in the 2015 nuclear deal talks.
Iran also announced a settlement over the IAEA's discovery of traces of 83.7 percent enriched uranium at the Fordow facility earlier this year.
- Iran stockpile
The IAEA reports confirmed that Iran continues to violate the restrictions imposed on its nuclear activities, and its total stockpile of enriched uranium continues to grow and is now 23 times the 202.8-kg limit set by the 2015 deal, at 4.7 tons.
The permissible limit in the agreement is 202.8 kilograms.
Iran's stock of enriched uranium has enriched to up to 60 percent to 141.1 kilograms since February.
Last October, the IAEA estimated that Iran possessed 62.3 percent of uranium of the 60 percent uranium. Back then, experts said Iran's stockpile was enough to make one bomb if it decided to do so.
After relations between Iran and the West deteriorated, Tehran limited its cooperation with the agency and removed surveillance cameras from some facilities.
It also gradually reneged on most of its commitments within the framework of the agreement concluded in 2015 between Tehran and the US, France, the UK, Russia, China, and Germany after then-President Donald Trump pulled out of the deal.
The US State Department said it has "full confidence" in the IAEA and that President Joe "absolutely committed to never allowing Iran to acquire a nuclear weapon," according to the Associated Press.
"We appreciate the IAEA's extensive efforts to engage Iran on longstanding questions related to Iran's safeguards obligations," the State Department said. "We have made clear that Iran must fully uphold its safeguards obligations."
