Jailed Ukrainian ex-premier Yulia Tymoshenko on Sunday said the opposition was demanding the immediate resignation of President Viktor Yanukovych, in a statement to a mass rally in Kiev read by her daughter. "Our aim is the early and immediate resignation of Yanukovych as president of Ukraine," Yevgenia Tymoshenko quoted her mother as saying in a message from detention. The mass rally responded by chanting "Resign!".