Inspectors for the United Nation's atomic agency have concluded that Iran is starting to enrich uranium on a far larger scale than before, according to The New York Times.

Top officials at the International Atomic Energy Agency (IAEA) came to the conclusion Sunday after a short-notice inspection at Iran's main nuclear facility at Natanz, the Times reported late Monday.

The inspection was conducted as a report is due early next week on Iran's program to the United Nations Security Council.

Unveiled in the look into Iran's capabilities is how the country has apparently overcome some earlier problems that had plagued further enrichment. The Iranians previously had difficulty keeping centrifuges spinning at high speeds needed to make nuclear fuel.

Those troubles appear to have been solved, according to the IAEA's director general.

“We believe they pretty much have the knowledge about how to enrich,” said Mohammed ElBaradei.

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