Ukraine fears that unrest could spread outside of territory held by Pro-Russian separatists. This comes after two people were killed in an explosion at a memorial rally in the eastern city of Kharkiv, far from the front line. <br /> <br />Visit our website: http://www.france24.com <br />Like us on Facebook: https://www.facebook.com/FRANCE24.English <br />Follow us on Twitter: https://twitter.com/France24_en
