Perezida Evariste Ndayishimiye w'Uburundi niwe yatowe na bagenzi ngo arongore umuryango wa Afrika y'Ubuseruko mu kiringo c'umwaka. Kuri uyu wa gatanu, Abakuru b'ibihugu 7 bigize uwo muryango bari mu nama i Arusha muri Tanzaniya igira 22.