Deputy Foreign Minister Sergei Ryabkov's comments to the Interfax news agency Thursday reflected simmering tensions between Moscow and Washington over Russia's annexation of Crimea. The U.S. and the EU have slapped members of Russian President Vladimir Putin's entourage with travel bans and asset freezes.
Ryabkov warned that Moscow may take retaliatory steps, but he didn't elaborate.
Ryabkov said the U.S. got "fixated" on halting cooperation with Russia. He said his "advice to the U.S. partners is to spend more time outdoors, do yoga ... and watch TV comedy series" instead of "childish whims, tears and hysterics that won't help."