The ban would come into force immediately, it said, adding that it had been imposed due to "unfriendly acts by Ukraine". Relations between Moscow and Kiev have deteriorated since a pro-Western government came to power after the 2014 revolt against a pro-Russian leader, Moscow's annexation of the Crimea and the outbreak of war in eastern Ukraine.
A total of 567 individuals and 75 Ukrainian companies have been targeted by Russian economic sanctions, which put a freeze on any assets they have in Russia. The figure includes 250 people and businesses added on Tuesday. Since the outbreak of the Ukraine war, Kiev has also taken a series of measures against Russian interests, including blocking Russian internet services and social media.