Gradually, dissatisfaction among the Muslim population, which lacked political and economic status under the colonial system, gave rise to demands for greater political autonomy and eventually independence from France. In May 1945, the uprising against the occupying French forces was suppressed through what is now known as the Sétif and Guelma massacre. Tensions between the two population groups came to a head in 1954, when the first violent events of what was later called the Algerian War began after the publication of the Declaration of 1 November 1954. Historians have estimated that between 30,000 and 150,000 Harkis and their dependants were killed by the Front de Libération Nationale (FLN) or by lynch mobs in Algeria. The FLN used hit and run attacks in Algeria and France as part of its war, and the French conducted severe reprisals.