The terrorists stormed Mubi on Wednesday. Gunfire has been heard in the town ever since, Yahoo News reported.
A security source on Thursday confirmed the town had fallen to the insurgents. Witnesses said they hoisted their black flag over the palace of the traditional ruler.
Witnesses said the insurgents robbed banks, burned down the main market and sacked the palace. One saw them kill a university lecturer and his entire family.
Violence in Nigeria’s Northeast has been on the rise since the government announced a ceasefire with the terrorist rebels nearly two weeks ago to pursue talks in neighboring Chad aimed at freeing more than 200 girls kidnapped in April.