Borno State (Nigeria) - Troops on Tuesday killed a group of suspected Boko Haram terrorists' mercenaries of Mamman Nur extraction when they dared to attack 81 Division Task Force Battalion's location at Gulumba Gana in Bama Local Government Area of Borno State. According to the Director of Army Public Relations, Brig Gen. Sani Usman, "the troops successfully dealt with the terrorists and pursued those that escaped and recovered two AK-47 rifles and two magazines of nine round of ammunition, two AGL bombs, several empty cases of Shilka gun ammunition, AGL bomb and one damaged mobile phone handset. "Similarly troops of 3 Battalion located at Logomani, Dikwa Local Government Area, Borno State, neutralised three Boko Haram, captured one alive and recovered three AK-47 rifles from Mamman Nur faction that dared to attack their location yesterday at about 7p.m. However, we lost a soldier during the pursuit," Usman stated. Boko Haram is an Islamic extremist/terror group based in northeastern Nigeria, also active in Chad, Niger and northern Cameroon. The group had alleged links to al-Qaeda, but in March 2015, it announced its allegiance to the Islamic State (ISIS). Since the current insurgency started in 2009, it has killed 20,000 and displaced 2.3 million from their homes and was ranked as the world's deadliest terror group by the Global Terrorism Index in 2015.