Russia's prime minister is accusing the West of rekindling the Cold War, saying sanctions imposed after the annexation of Crimea and new moves by the NATO alliance "only aggravate" tensions.

Dmitry Medvedev said Saturday that Russian President Vladimir Putin told the same Munich Security Conference in 2007 that the West's building of a missile defense system risked restarting the Cold War, and that now "the picture is more grim; the developments since 2007 have been worse than anticipated."

"NATO's policies related to Russia remain unfriendly and opaque — one could go so far as to say we have slid back to a new Cold War," he said. "Sometimes I wonder if it's 2016 or if we live in 1962."