Some 100 people were detained in a recent special operation conducted by the Ukrainian Security Service (SBU) in Avdiyivka, Yuriy Tandit, an adviser to the head of SBU, said. Most of these people have already been released, he said.Three people are suspected of illegal activities in subversive-investigation groups. One person is suspected of involvement in the work of foreign special services," Yuriy Tandit said. The SBU official said such preventive activities are also planned in other cities of Ukraine located near the frontline.
