Tehran is now negotiating a deal with six world powers that puts long-term caps on its present nuclear activities. The International Atomic Energy Agency, led by Yukiya Amano, will monitor Iran's compliance with the deal.
The US and its allies also say the IAEA must rule on whether or not Iran worked in the past on nuclear weapons before all sanctions imposed over Tehran's nuclear program can be lifted.
Amano, however, challenged that, saying Iran already has committed to permit "access to sites, documents (and) people" under a preliminary agreement that outlined components of the deal now being negotiated.
Coming just weeks ahead of a June 30 target date for a nuclear deal, Amano's comments were certain to further inflame the controversy between Iran and the international community over the degree of intrusiveness the nuclear agreement will give the IAEA.
