by Salisu Shitu in Jos, with Aminu Abubakar in Kano Agence France-Presse JOS, Nigeria (AFP) — Nigeria’s President Muhammadu Buhari on Sunday called for calm after 86 people were killed in an attack by suspected nomadic herders against farming communities in the restive centre of the country. The grim discovery in the Barikin Ladi area of Plateau state came after days of violence apparently sparked by an attack by ethnic Berom farmers on Fulani […]