Iran's hardline President Mahmoud Ahmadinejad has again questioned the official version of the Sept. 11 attacks in the U.S., calling it a "big lie" used as an excuse to invade Afghanistan and Iraq.

Iranian state television quoted Ahmadinejad on Saturday as saying the 2001 attacks were an "intelligence scenario and act."

Ahmadinejad has questioned the official U.S. version several times about who was behind the attacks and how it happened.

In 2007, Ahmadinejad said the Sept. 11 attacks were "a result of mismanaging and inhumane managing of the world by the U.S." He said Washington was using them as an excuse to invade other countries.