Boko Haram, officially known as Jamā'at Ahl as-Sunnah lid-Da'wah wa'l-Jihād, is a self-proclaimed jihadist militant group based in northeastern Nigeria and also active in Chad, Niger, northern Cameroon, and Mali. From Wikipedia
The attack near the border with Cameroon highlights escalating violence by Boko Haram and ISWAP, with militants adopting new tactics like armed drones and IEDs.
