Practice Relating to Rule 55. Access for Humanitarian Relief to Civilians in Need
Section B. Impediment of humanitarian relief
Uruguay’s Law on Cooperation with the ICC (2006) states:
26.2. Persons and objects affected by the war crimes set out in the present provision are persons and objects which international law protects in international or internal armed conflict.
26.3. The following are war crimes:
33. Intentionally using starvation of civilians as a method of warfare or of combat by depriving them of objects indispensable to their survival, including wilfully impeding relief supplies or access to the victims as provided for under the  Geneva Conventions and international humanitarian law.