Règle correspondante
Practice Relating to Rule 31. Humanitarian Relief Personnel
The Report on the Practice of Israel states:
It is the IDF’s [Israel Defense Forces’] policy to cooperate with international humanitarian agencies and organizations, both in time of peace and in time of war. In times of hostilities, members of such agencies and organizations would naturally not be the subject of any attack or capture, and would be allowed to continue to execute their mandate, inasmuch as their activities do not directly conflict with military operations. 
Report on the Practice of Israel, 1997, Chapter 4.2.