In Ukraine, Russian forces took control of Kreminna city in the eastern part of the country. Quoting Serhiy Gaidai, the governor of the Luhansk region, an agency reported that Kreminna is under the control of the Russian troops and Ukrainian troops withdrew from the city.  <br />''<br />''The agency report added Russia-backed separatist forces are trying to storm the Azovstal metallurgical plant in the besieged Ukrainian port of Mariupol. In the meantime, Ukrainian Deputy Prime Minister Iryna Vereshchuk said, the country was for the third successive day unable to secure Russia's agreement to establish any humanitarian corridors to evacuate civilians trapped in cities and towns. <br />''<br />''<br />