The FSB announced the suppression of the activities of Ukrainian intelligence agents in three areas.
Three Russian citizens and one foreigner were arrested in Adygea, DPR and Omsk.
"At the behest of their curators, they gathered information about Russian military personnel who take part in the military-industrial complexes and the consumption of fuel to continue carrying out acts of sabotage and terrorism," the Public Relations Center of the Federal Security Service noted.
Their activities were coordinated through the Telegram messenger. For cooperating with Kyiv, they were promised a large monetary reward and transfer to the territory of the European Union, the FSB added.