source: Hoop; Undisclosed Source
actor1: Islamic State (West Africa) - Lake Chad Faction
actor2: Police Forces of Chad (1990-2021)
location: Ngouboua
notes: On 22 August 2020, a vehicle of a mobile customs unit struck an IED between Ngouboua and Ngasha (Mamdi, Lac). One customs officer was killed and three others wounded. The device was likely planted by ISWAP militants. The group said in a statement that an IED detonated against a Chadian army vehicle on August 26, and killed seven soldiers between Ngouboua and Tchoukou Ali.