From The Independent:
Donald Trump’s ban on travel to the US from some Muslim-majority countries has been denounced by the UN's rights chief as “mean-spirited” and illegal under international human rights law.
Zeid Ra'ad al Hussein said: “Discrimination on nationality alone is forbidden under human rights law."
The UN Human Rights Council that al Hussein heads includes Bangladesh, Iraq, Saudi Arabia and the United Arab Emirates.
All of those countries ban Israelis from entering.
Because of their nationality.
(h/t David A)