source: Undisclosed Source
actor1: Islamic State (West Africa) and/or Boko Haram - Jamaatu Ahli is-Sunnah lid-Dawati wal-Jihad
actor2: Civilians (Cameroon)
location: Kolofata
notes: On 30 May, BH men attacked Cheripouri, Kolofata: they killed a man before leaving as Cameroonian soldiers arrived.