Putin said the assassination was carried out with a cynical disregard for human morality and international law.
"Please accept our deepest condolences over the assassination of the Supreme Leader of the Islamic Republic of Iran, Ali Khamenei, and his family members, committed in cynical violation of all norms of human morality and international law," the statement read.
He added that Khamenei would be remembered in Russia as an outstanding statesman who made a significant contribution to strengthening friendly relations between Russia and Iran.
Putin also asked Pezeshkian to convey his sincere sympathy and support to Khamenei’s relatives and loved ones, as well as to the government and people of Iran.