As fighting intensifies, Ukraine President Poroshenko threatens to appeal to an international court while Putin points finger at Kiev's unwillingness to talk. Deborah Lutterbeck reports.
They are burying the dead in eastern Ukraine. At least 30 civilians were killed in the strategic port city of Mariupol Saturday, with Ukrainian President Petro Poroshenko saying he will appeal to the International Court of Justice in response to the rebel offensive. (SOUNDBITE) (Ukrainian) UKRAINE PRESIDENT, PETRO POROSHENKO, SAYING: "Crimes against humanity and the terrorism from which Ukraine is suffering, must receive adequate response from the European Union, and I also want to inform you that we are planning to appeal to the Hague tribunal to examine these crimes." Moscow denies playing a military role in the conflict. Russian President Vladimir Putin instead accuses Kiev of prolonging the conflict by refusing to talk to the rebels. (SOUNDBITE) (Russia) RUSSIAN PRESIDENT, VLADIMIR PUTIN, SAYING: "Unfortunately the official Ukrainian authorities are refusing to go down the path of peaceful resolution, they don't want to solve it using political means." As they mourn those who have died in the conflict, on Monday Russian-backed rebels advanced to encircle a Ukrainian army garrison town. A new offensive that has again unleashed all-out war after a five-month ceasefire and brought threats of new Western sanctions against Moscow. The U.S. and the EU are now considering new measures after accusing Russia of openly supporting the latest rebel advance with money, arms and troops on the ground.