TEHRAN, Iran (CNN) - The administration of U.S. President Barack Obama "poses a threat to international peace" and is "wicked and untrustworthy," Iran's supreme leader said Sunday, according to Iranian media.
Supreme Leader Ayatollah Ali Khamenei made the remarks Sunday in a meeting with the Armed Forces chief of staff and other top military officials, according to Iran's state-run Islamic Republic News Agency (IRNA).
Khamenei said that Obama had recently threatened Iran with nuclear weapons.
He apparently was referring to last week's announcement of a shift in U.S. nuclear strategy, in which the administration said it would swear off developing new generations of nuclear weapons and would not use its existing arsenal to attack non-nuclear states that are in compliance with non-proliferation agreements.
Defense Secretary Robert Gates, however, said Tuesday that the new policy sends a "strong message" to states such as Iran and North Korea, which are believed by many observers to be seeking a military nuclear capability.
"If you're going to play by the rules (of the 1968 Nuclear Non-Proliferation Treaty), we will undertake certain obligations to you," Gates said. "But if you're not going to play by the rules ... all options are on the table."
"(The) president of a state stands before the podium and poses (a) threat to international peace with nuclear weapons," IRNA quoted Khamenei as saying. "Such statements indicate that the U.S. administration is wicked and untrustworthy."
He emphasized the importance of "a powerful, vigilant and courageous military force," IRNA said, and advised Iran's military to prepare well in order to handle the threats.
"Certain governments and their heads fully back aggressions and establishment of terrorist organizations to attain their sinister goals, but in dealing with the international community, they take a humanitarian gesture and use soft words," Khamenei said, according to IRNA. He added that Obama's recent statement is a good example.
"The Americans did their best to imply that the Islamic Republic of Iran is not a trustworthy country on nuclear issues, but the fact is that those who possess such weapons and shamefully threaten others with such bombs are unreliable," the supreme leader said.
On Friday, Iranian President Mahmoud Ahmadinejad said the nation has advanced its nuclear technology, unveiling new, faster centrifuges and celebrating "giant steps" forward.
He referred to the signing of an arms deal between the United States and Russia on Thursday - including remarks by Obama that the United States' goal is a world without nuclear weapons - as "a show performed by the United States" and "a great lie."