Iran denounced on Monday as "words without value" US President George W. Bush's remarks that the Islamic state was threatening security around the world by backing terror.
Speaking in Abu Dhabi on Sunday, Bush said Iran was the world's top sponsor of terrorism and accused it of undermining peace by supporting Hizbollah in Lebanon, Palestinian Islamist group Hamas and Shi'ite militants in Iraq.
"Bush should understand that the hatred towards his policies exists ... it has real and logical roots," Iran's Foreign Ministry spokesman Mohammad Ali Hosseini was quoted as saying by state radio.
"Bush's remarks display his desperation and disappointment because of his failures in the region ... He is trying to divert attention from his failed policies," he said, adding Bush 's comments were "repeated words without value".
Iran blames sectarian violence in Iraq on the US-led invasion to topple Saddam Hussein in 2003 and has repeatedly called on the United States to withdraw its forces.
Tehran says it wants nuclear technology for civilian purposes.