In international law a crime against humanity is an act of persecution or any large scale atrocities against a body of people, and is the highest level of criminal offense. The Rome Statute Explanatory Memorandum states that crimes against humanity "are particularly odious offences in that they constitute a serious attack on human dignity or grave humiliation or a degradation of one or more human beings. They are not isolated or sporadic events, but are part either of a government policy (although the perpetrators need not identify themselves with this policy) or of a wide practice of atrocities tolerated or condoned by a government or a de facto authority. [Wiki] Israel is the occupying power and therefore responsible for safeguarding health and welfare of the population. Call the police.
Saudi king to meet with Obama on Friday amid Gulf concerns over Iran deal (Reuters)
from the article: Red Cross: Israel worsening Palestinian humanitarian crisis