"I myself heard the explosions in Kiev today. russia is using missiles to attack the most defenseless people - sick children. For Putin, children lying in hospital beds with cancer and other serious illnesses are legitimate targets of war.
This is an unrivaled disregard for humanity. We visited the hospital ourselves during the war and also collected donations to help the children.
The world needs to realize that putin does not want peace but is striking more and more brutal blows. Who are we as a human race if we allow innocent children lying in hospital beds to be targets of war? He must be stopped," Klitschko wrote on Instagram.