An estimated 70% of the population is Muslim. Islam predominates in the north. Almost all Muslims are Sunni, although there are significant distinctions between followers of different Sunni traditions, particularly among Sufi brotherhoods. | An estimated 70% of the population is Muslim. Islam predominates in the north. Almost all Muslims are Sunni, although there are significant distinctions between followers of different Sunni traditions, particularly among Sufi brotherhoods. |