US President Barack Obama’s mental state was questioned by Russian Prime Minister Dmitry Medvedev during an interview aired on Wednesday.
Speaking with CNBC, Medvedev said Obama was suffering from a “mental aberration.”
He also blasted the US president for calling Moscow’s actions in Ukraine a threat to the international community.
“It’s sad to hear President Obama say in an address at the UN that the threats and challenges facing humanity are, in this particular order, the Ebola virus, the Russian Federation, and only then the Islamic State (or ISIL),” Medvedev said.
“I don’t want to dignify it with a response. It’s sad, it’s like some kind of mental aberration,” he added.
The United States accuses Russia of arming and supporting pro-Russian forces fighting against the government in Kiev. The Kremlin, however, denies the allegations.
The Obama administration has imposed sanctions against the Kremlin over the Ukraine crisis.
The sanctions include restricting exports of American goods, services and technology to Russia’s largest oil companies.
Medvedev also noted that the US-led sanctions against his country have inflicted considerable damage to Russia’s cooperation with the United States.
He ruled out the possibility of an immediate reset in relations between Moscow and the United States.
“What sort of reset can be there under such conditions? We must first distance from this all and return to a normal position, at least to the starting position and only then we can start elaborating on the development of relations in the future,” he said.