Vasyl Krutov, first deputy head of the Ukrainian Security Service and the head of the Anti-terrorist Centre of the Ukrainian Security Service, said law enforcement officials have detained some thirty saboteurs.
"Investigators now have some thirty saboteurs," Krutov told a briefing on Friday, without specifying in what regions and when the detentions were made. "Law enforcement know what goals and tasks these people had. An investigation is under way," he said. Krutov also said there are "Russian staff officers among the detainees."