Western partners, African leaders vow to fight Boko Haram

On regional level, they vowed to implement coordinated patrol to locate the missing schoolgirls, establish a system to pool intelligence and mechanisms for information exchange on trafficking of weapons and finally to improve border control.

On international level, "the participants commit to accelerating the implementation of international sanctions against Boko Haram, Ansaru and their main leaders, within the United Nations framework as a priority", the statement said.

"Boko Haram has anti-civilisation strategy to destabilise Nigeria and the destruction of the fundamental principles of human freedom also," Hollande told reporters after Saturday's meeting.

"An overall plan must be implemented to exchange information, coordinate activities, control borders and act appropriately."

Boko Haram has claimed responsibility for the abduction of 276 schoolgirls during a raid in the village of Chibok in north-east Nigeria last month.