Amnesty International has slammed the verdict as `` politically motivated '' and called for the release of Tymoshenko , who was prime minister from January to September 2005 and December 2007 to March 2010 . Ukraine 's former prime minister , Yulia Tymoshenko , has n't taken office since Friday night . She is in prison serving a seven - year sentence for abuse of power . The prosecutor and his office investigated and found no ` ` proof '' of her guilt .
Ukraine 's former prime minister , Yulia Tymoshenko , has n't taken office since Friday night . She is in prison serving a seven - year sentence for abuse of power . The prosecutor and his office investigated and found no ` ` proof '' of her guilt .