The head of the International Atomic Energy Agency (IAEA) says the agency has received a "substantive volume" of information from Iran earlier this month aimed at quelling concerns its nuclear past had military elements.
IAEA Director-General Yukiya Amano told reporters in Vienna on August 25 that the information was received on August 15, adding that it was too early to say whether any of it is new.
Amano also said he had asked member states for more funding to ensure the IAEA's work on Iran can continue.
Under a deal between Tehran and six world powers reached on July 14, sanctions relief for Iran hinges on IAEA reports on its past and present nuclear program.
The West suspects Iran's nuclear activities are aimed at making an atomic bomb, which Tehran denies.