 Buhari asaba Onu gufasha mwirekurwa ryabigeme bi Chibok Nigeria: Igisirikare kigaruriye Chibok Umwigeme umwe wi Chibok yabonetse Igisirikare ca Nigeria cari kimaze imisi gikora ibikorwa vya gisirikare mwishamba rya Sambisa, ahaba abagwanyi bumuhari Boko Haram. 