Nigeria terms abduction of schoolgirls a 'national disaster'
Nigerian President Muhammadu Buhari has called the abduction of schoolgirls by the Islamist militant group Boko Haram a "national disaster". More than 100 girls were reported missing after the militants attacked a school in Yobe state on Monday. The attack comes four years after the Boko Haram kidnapped more than 270 girls from a school in the town of Chibok.