Vienna: The UN nuclear agency is expected to say on Friday that Iran is stalling the agency's attempts to probe allegations that Tehran worked on nuclear weapons.
The confidential report from the UN's International Atomic Energy Agency is significant in recording where the investigation stands for the US and five other world powers seeking a nuclear deal with Iran.
The US and its allies say no final agreement will be reached until the IAEA issues a ruling saying it's satisfied with its inquiry.
Half a dozen diplomats told The Associated Press about the confidential report.
Negotiators are aiming to seal a deal on November 24 but the investigation is expected to drag on beyond that date. Iran denies working on getting nuclear arms.