As reported by Censor.NET, Klimkin announced it on Twitter.
"I have informed the Council of Europe about the NSDC decision regarding Russian websites and social media," he wrote.
Ukraine's FM explained that Ukraine was forced to implement sanctions against a number of Russian legal entities, the activities of which pose a threat to national information and cyber security, as well as generate hatred and wrangling.
"The implemented limitations constitute purposeful countermeasures adopted under the proportion principle against the Russian Federation as a state that has to be held accountable for its deeds," Klimkin said.
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