According to Open Doors, Nigeria is the 12th worst country in the world for persecution of Christians. Those responsible are Islamists, who are concentrated almost entirely in the north. In large areas the Hausa, Fulani and Kanuri groups are in the majority and Christians often face persecution. There are some areas of the north – states such as Taraba, Benue, Plateau and parts of Kaduna – where Christians are in the majority; but the presence of Hausas and Fulanis has increased over the years. Violent conflict has been the result.