 Ukrainian security service has revealed that three former regional officials, Oleg Zarev, Dmitry Swatash and Igor Markov, are suspected of treason. The service said that Zarev leaked information about the results of air attacks on Ukraine to the Russian Defense Ministry's leadership. He was the one who gave Russia detailed information obtained from Dmitry Swatash about the results of the shelling of the Kramenchuk oil refinery last April. In addition, Swatash also provided Russians with information about weapons, the timing and coordinates of the movement of Defense Forces units in Kharkiv region. Another suspect, Igor Markov, regularly defends Russia's war against Ukraine in major Russian television channels. All three suspects are currently hiding in the Russian territory.