Demographics of Iraq
97% of Iraqis follow Islam: 61% Shia and 34% Sunni. 1% of these describe themselves as "Just a Muslim". According to the CIA Factbook, Shias make up 60% of population, while Sunnis 35%. Christianity accounts for 5%, and the rest practice Mandaeism, Yazidism and other religions.
Human rights in ISIL-controlled territory
Despite being the religious majority in Iraq, Shia Muslims who predominantly inhabit the country's south have been killed in large numbers by ISIL. By June 2014, ISIL had already claimed to have killed 1700 Shia Muslims. ISIL, attempting to create a Sunni Muslim caliphate, has labelled all Shia Muslims infidels. As a result, they have specifically targeted Shia communities. According to witnesses, after the militant group took the city of Mosul, they divided the Sunni prisoners from the Shia prisoners. 650 Shia prisoners were then taken to another location and executed. Kurdish officials in Erbil have reported similar incidents where Sunni and Shia prisoners were separated and Shia prisoners were killed.
Shia are sometimes burned alive.