Al-Qaida has sent a message to the Iranian president, Mahmoud Ahmadinejad, asking him to stop spreading conspiracy theories about the 9/11 attacks.

Iranian media on Wednesday reported quotes from what appears to be an article published in the latest issue of the al-Qaida English language magazine, Inspire, which described Ahmadinejad's remarks over the 11 September attacks as "ridiculous".

In his UN general assembly speech last week, Ahmadinejad cast doubt over the official version of the 2001 attacks.

"The Iranian government has professed on the tongue of its president Ahmadinejad that it does not believe that al-Qaida was behind 9/11 but rather, the US government," the article said, according to Iranian media. "So we may ask the question: why would Iran ascribe to such a ridiculous belief that stands in the face of all logic and evidence?"