source: Undisclosed Source; Sembe TV
actor1: Islamic State (West Africa) - Lake Chad Faction and/or Boko Haram - Jamaatu Ahli is-Sunnah lid-Dawati wal-Jihad
actor2: Civilians (Cameroon)
location: Doulo
notes: On 4 December 2019, members of Boko Haram attacked Tayer village, in Doulo subdivision (Mayo-Sava, Extreme-Nord) [coded: Doulo]. They abducted sixteen people and injured one person.