NEW : 26 people were injured in the mosque attack in the village , a medical source says . At least 44 people died when gunmen attacked the mosque , a police official said . Villagers have also been attacked for helping the government , police sources say . Boko Haram leader released a video over the weekend , boasted of the group 's activities .
NEW : 26 people were injured in the mosque attack in Borno state , a medical source says . At least 44 people died when gunmen attacked the mosque , a police official says . Villagers have also been attacked for helping the government , police sources say . Boko Haram leader released a video over the weekend , boasted of the group 's strength .