Iran will not retreat "an iota" from its nuclear programme and the world is being misled by claims that it is seeking nuclear weapons, Iranian President Mahmoud Ahmadinejad has said.<br /><br />Ahmadinejad was speaking on Wednesday in response to a report from the International Atomic Energy Agency (IAEA), the UN nuclear watchdog, which alleged that Iran was close to developing a nuclear warhead.<br /><br />Al Jazeera's Dorsa Jabbari reports from Tehran.