source: Daily Nation (Kenya)
actor1: Unidentified Armed Group (Kenya)
actor2: Civilians (Kenya)
location: Merti
notes: On 21 September 2021, a hand grenade by an unknown group detonated, killing two boys who were playing with the device after mistaking it for a football outside a home in Matarba village near Merti town (Merti, Isiolo).