source: Undisclosed Source
actor1: Ambazonian Separatists (Cameroon)
actor2: Military Forces of Cameroon (1982-)
location: Oku
notes: On 30 May 2021, Ambazonian separatists detonated an IED against the military forces in Oku village, Belo subdivision (Boyo, Nord-Ouest). They claimed having killed 3 soldiers.