source: Undisclosed Source; Mimi Mefo
actor1: Islamic State (West Africa) - Lake Chad Faction and/or Boko Haram - Jamaatu Ahli is-Sunnah lid-Dawati wal-Jihad
actor2: Civilians (Cameroon)
location: Koza
notes: On 21 August 2021, Boko Haram fighters attacked Koza town (Mayo-Tsanaga, Extreme-Nord), killing at least two people.