Poroshenko vows to maintain unity of Ukraine

Ukraine's new President Petro Poroshenko vowed at his inauguration ceremony Saturday to maintain the unity of his country, as the east is embroiled in an uprising by pro-Russian rebels.

Speaking in parliament, Poroshenko promised the residents of the Donbass region, which is largely in rebel hands, that he would decentralise power and guarantee the free use of the Russian language.