The hostility of southerners toward the northern Arab majority surfaced violently when southern army units mutinied in August 1955 to protest their transfer to garrisons under northern officers. The rebellious troops killed several hundred northerners, including government officials, army officers, and merchants. The government quickly suppressed the revolt and eventually executed seventy southerners for sedition. But this harsh reaction failed to pacify the south, as some of the mutineers escaped to remote areas and organized resistance to the Arab-dominated government of Sudan.