Updated

The United Nations says Iran has turned all enriched uranium closest to the level needed to make nuclear arms into more harmless forms.

Tehran had committed to the move under an agreement with six powers last November that essentially froze its atomic programs while the two sides negotiate a comprehensive deal. They extended those talks Saturday to Nov. 24.

Iran had more than 200 kilograms (over 250 pounds) of 20 percent enriched uranium when the agreement was reached and began reducing it shortly after. The U.N.'s International Atomic Energy Agency said Sunday in a report obtained by The Associated Press that all has now been converted or diluted.

At 20 percent, enriched uranium can be converted quickly to arm a nuclear weapon. Iran denies wanting such arms.