Religious segregation is the idea that people should be separated based on their religion. Certain laws of a country may only apply to one religious group. As an example, Sharia only applies to Muslims. The term religious apartheid has also been used. Apartheid was the term used to refer to racial segregation in South Africa. Other examples for religious segregation are that in Iran, certain students have been expelled from university because they were not Muslims, but Baha'i.