Ukrainian presidential candidate Petro Poroshenko urged Europe and the United States to agree on a third wave of sanctions against Russia if the Kremlin supports a referendum organized by separatists in eastern Ukraine on May 11.
Russia's War Against Ukraine
Reuters: Poroshenko urges more sanctions if Russia backs referendum
\"If Russia will support this referendum we need absolutely agreed action about the third wave of sanctions\", said Ukrainian presidential candidate Petro Poroshenko.
