This was announced by Ukraine's Security Service (SBU) Head Vasyl Hrytsak during briefing on May 15, Censor.NET reports citing Gordon.
"We see a system -- not just single cases in a certain city or an event dedicated to something. We see systemic efforts of these secret services," Hrytsak said.
SBU head added that Russian secret services usually use methods like recruiting people from among patriotic citizens, and infiltrating their own sources in patriotic circles.
"Russian secret services conduct dense monitoring of our state and regional issues that are later used as a basis for holding events aimed at destabilization of the situation," he said.
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