Pretty strong language from Amnesty International on the situation with blocked food aid destined for Eastern Ukraine: http://amnesty.org/en/news/eastern-ukraine-humanitarian-disaster-looms-food-aid-blocked-2014-12-23.
Amnesty has been very neutral in its criticism of both sides in the conflict, so this is an objective source, in my view. For example of Amnsety's balance see: http://www.amnesty.org/en/news/eastern-ukraine-both-sides-responsible-indiscriminate-attacks-2014-11-06. In contrast, I have not spotted any reporting of the above problem in the mainstream Western media.