Iran's Supreme Leader Ayatollah Ali Khamenei says US President George W. Bush and his advisors act like mentally ill people.
''Look at behavior of the US president and members of his team, their words are like those of the mentally ill,'' said Khamenei, who has final say on all matters in Iran, on Tuesday at a ceremony honoring the late Ayatollah Ruhollah Khomeini, founder of the Islamic Republic.
''Sometimes they threaten, sometimes they order assassinations ... and sometimes they ask for help - it's like mad people staggering to and fro,'' he said.
Khamenei said the erratic behavior of the US leader is rooted in the failures in Afghanistan and Iraq and he urged nations to resist "American bullying."
Khamenei also said his country will continue with its controversial nuclear program, but rejected nuclear weapons.
''Iran is after the peaceful use of nuclear energy and we will strongly pursue and reach it despite of the envy of our enemies,'' he said.
''No wise nation is interested in making a nuclear weapon,'' since it is not logical and cannot be used, added Khamenei who has final say on all matters in the country.
Earlier on Monday, UN atomic watchdog chief Muhammad ElBaradei asked for more clarity from Iran about a possible nuclear weapons program.