Following 9 May 1945 Sétif massacres, other riots against the European presence occurred in Guelma, Batna, Biskra, and Kherrata, causing 103 deaths among the colonials. The repression of these riots officially caused 1,500 deaths, but N. Bancel, P. Blanchard, and S. Lemaire estimate it to be rather between 6,000 and 8,000 deaths