Russia's foreign minister has brushed off Iran's recent criticism as an emotional outburst and expressed frustration with Tehran in the standoff over its nuclear program.
Russia now supports possible new sanctions against Iran over concern that it is developing nuclear weapons.
Iranian President Mahmoud Ahmadinejad took Russia to task for this Wednesday by saying it was difficult to gauge whether the Kremlin was a friend or an enemy.
Russian Foreign Minister Sergey Lavrov said Thursday that "this statement is being interpreted as emotional."
He lamented that, despite Russia's years of efforts to resolve the dispute, "the response from the Iranian side has been unsatisfactory."