Ukrainian President Petro Poroshenko (L) talks to oligarch Ihor Kolomoisky during a representing ceremony of a new governor of the eastern Dnipropetrovsk region in Dnipropetrovsk March 26, 2015. REUTERS/Mikhail Palinchak/Ukrainian Presidential Press Service/Handout via Reuters  ATTENTION EDITORS - THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS - RTR4V18P

Crisis in Ukraine