source: Daily Trust (Nigeria); Sun (Nigeria); Daily Independent (Nigeria)
actor1: Unidentified Armed Group (Nigeria)
actor2: Police Forces of Nigeria (2015-)
location: Yenagoa
notes: On 5 September 2021, an unidentified armed group engaged police and NSCDC officers in an armed clash that led to the killing of two officers in Yenagoa (Yenagoa, Bayelsa).