Fedorchenko had been serving a 4-and-a half year sentence at a penal colony in Ussuriysk, in Russia's far east.
Russia’s Investigative Committee opened a criminal case against Aliyev at the end of August for making “public calls to terrorism” in a video on his Instagram page in which he called on AFU soldiers in the Kursk region to “kill civilians like they [Russia] are doing with our women, our innocent children” following Russian air strikes on cities across Ukraine.