IAES inspectors have returned to Vienna following a visit to Iran to resolve questions regarding Iran's nuclear ambitions.
Mostafa Kavakebian, a lawmaker on the Iranian Parliament's foreign policy committee, said if the IAEA published an "unrealistic report" on Iran's nuclear work and misled the international community, inspectors would be barred from entering the country, state-funded broadcaster Press TV reports.
IAEA Chief Inspector Herman Nackaerts was quoted by the BBC as saying from Vienna that trip went well "but of course there is still a lot of work to be done and so we have planned another trip in the very near future."
Tehran described the IAEA visit as "constructive." Tehran insists its nuclear program is for peaceful purposes, though critics say Iranian nuclear scientists are working on the technology needed to produce a nuclear bomb.
IAEA Director General Yukiya Amano expressed concern last year "about the existence of possible military dimensions" to the country's nuclear program. Iran complained the IAEA's reporting wasn't "balanced."