source: AFP; Xinhua
actor1: Islamic State (West Africa) and/or Boko Haram - Jamaatu Ahli is-Sunnah lid-Dawati wal-Jihad
actor2: Civilians (Nigeria)
location: Konduga
notes: 27 May. Two Boko Haram suicide bombers strike a Konduga mosque. At least three civilians dead in addition to the bombers.