Iran's president sparked a mass walk-out by US delegates yesterday after telling a UN summit that most people believe the American government was behind the 9/11 attacks.

Ahmadinejad stands by 9/11 probe call: - Video - "The event was very suspicious, but I do not wish to pass judgment. I simply tried to offer a proposal for a humane solution to problems that have risen as a result of 9/11,"Ahmadinejad told a press conference on Friday.