08 April 2017, Maiduguri Nigeria - School girls walk past as a vendor smokes local chicken barbecue in Maiduguri, Borno State in northeast Nigeria, on April 8, 2017. Food and Agriculture Organization Director-General Jose Graziano da Silva visited Maiduguri, northeast Nigeria, to improve food security and nutrition conditions of most vulnerable IDPs, refugees, returnees and host communities in northeast Nigeria.