In its monthly humanitarian bulletin, the agency stated that colonization deprives Palestinians of their property and sources of life, restricts their access to services and triggers demands for protection.
OCHA illustrated the situation with an impact analysis of four Israeli regime settlements, Asfar in the city of Hebron, Talmon and Nahliel in Ramallah, and Elon Moreh in Nablus.
These cases reaffirm the commitment of the Jewish settlers to increase their spatial control over the areas surrounding the facilities and natural resources, through the development of new activities and infrastructures, he said.
According to the office, the settlements also involve the attempt to expel the Palestinians from their lands.
OCHA recalled in its report that colonization of the West Bank, including East Jerusalem, is illegal under international law.
Last December, the United Nations Security Council adopted a resolution that rejects Israeli settlements in Palestinian territories and considers them the main obstacle to the two states' solution.
However, the January 20 White House arrival of Republican Donald Trump has been a stimulus to colonization.
PL/MNA