Police : Gunmen shot at people as traders were closing market in Borno village late Sunday . Witness : Suspected Boko Haram militants opened fire on a village market and burned homes in the northeastern Nigerian state of Borno late Sunday , killing at least 45 people and injuring 26 others , the state 's police commissioner said . Attackers first posed as traders . Police say Nigerian militant group Isa Ibrahim believed to have launched the attack .
Police : Gunmen shot at people as traders were closing market in Borno village late Sunday . Witness : Attackers first posed as traders . Police say Nigerian militant group Isa Ibrahim believed to have launched the attack .