Ukraine president says he'll consider aid mission as Obama, Merkel warn Russia not to interveneUkrainian President Petro Poroshenko has said he will consider allowing an international aid mission into rebel-held areas of eastern Ukraine after pro-Russian separatists called for a case-fire to avert a "humanitarian catastrophe."<img src="http://feeds.feedburner.com/~r/foxnews/world/~4/UHp1BdnaMEo" height="1" width="1"/>
Source: Ukraine president says he'll consider aid mission as Obama, Merkel warn Russia not to intervene (http://feeds.foxnews.com/~r/foxnews/world/~3/UHp1BdnaMEo/)