(FILES) This file photo taken on February 24, 2017 shows a vigilante sitting on the ground with his gun in the village of Bakin Kogi, in Kaduna state, northwest Nigeria, that was recently attacked by suspected Fulani herdsmen. Long-standing tensions between herdsmen and farmers have flared up again in Kaduna state, northern Nigeria, leaving possibly hundreds dead in tit-for-tat violence. Clashes between the Muslim, largely Hausa-speaking Fulani cattle drivers and the mainly Christian farmers have escalated since December 2016. According to a report by the International Crisis Group released last year, more than 2,500 people were killed by the violence across the country in 2016. / AFP PHOTO / STEFAN HEUNIS