Germany's Frankfurter Allgemeine Sonntagszeitung reported Saturday that the head of Mahmoud Ahmadinejad's office, Esfandiar Rahim Mashai, told the newspaper "these documents cannot be authentic."
CBSNews.com Special Report: WikiLeaks
It quoted Mashai as saying that the leaked cables "certainly have no negative consequences" for Iran's relations with the Arab world.
Iran's nuclear program, which it insists is only for peaceful energy production, has sent chills throughout the region. Several Arab countries, according to the cables published by WikiLeaks, expressed strong concern to the U.S. about it, including support for military strikes.