KIEV, May 10 - Yulia Tymoshenko, the leader of the Batkivschyna party and a former Ukrainian prime minister, has filed a complaint with Kiev's Pechersky Court against the Ukrainian Prosecutor General's Office for opening a criminal investigation related to the 2009 Ukrainian-Russian gas contracts against her.

"Serhiy Volodymyrovych [Vlasenko, a parliamentarian representing the Yulia Tymoshenko Bloc, whom Tymoshenko wants to see as her defense attorney] and I have appealed the directive on opening a criminal case on gas issues with the Pechersky Court," Tymoshenko told journalists before being questioned at the Prosecutor General's Office on Tuesday.