"Most of the victims were slaughtered and most of the wounded (had suffered) machete cuts," Mustapha Karimbe, a civilian helping the Nigerian military fight Boko Haram, said of Saturday's attacks in the villages of Warwara, Mangari and Bura-Shika in Borno state.
News of the attacks has been slow to emerge because telecom masts in the area have been destroyed in previous Boko Haram raids, hindering communication.
The Islamists invaded the villages, hacking and slaughtering their victims before setting the villages on fire.

Latest News from World News Desk