Ahavuye isanamu, Reuters Ku musi wa gatandatu, prezida wa Nigeria Muhammadu Buhari w'imyaka 74, ariko arakirwa n'abakuru b'intara ku kibuga c'indege co ku mugwa w'indege Abuja, agarutse ava mu Bwongereza aho yari amaze amezi atatu kwivuza.
