The Ukrainian Internal Security Service said on Monday that Ukraine arrested two people recruited by Russian intelligence agencies who planned to kill the Ukrainian Minister of Defense and the head of the Ukrainian Military Intelligence Agency.

The agency said in a statement that the Ukrainian security forces foiled a plot by the Russian Military Intelligence Agency to use a sabotage group to carry out three assassinations, one of which targeted a prominent Ukrainian activist.

News sources have not been able to independently verify these reports. So far, there has been no response from Moscow or Russian official media to the Ukrainian statement.

Russia invaded Ukraine on February 24, and the security operations for senior officials in the country are subject to very strict procedures.