Ahavuye isanamu, Getty Images Insiguro y'isanamu, Kutitabwaho neza kw'ububiko bwa gaze muri Nigeriya biteza impanuka kenshi Amamiriyoni y'abanye Nigeriya bikora kuri gaze y'ubwoko bwa "butane" mu gukinjika kuko umuyagankuba muri ico gihugu uboneka nabi cane.
