actor1: Protesters (Nigeria)
actor2: Police Forces of Nigeria (2015-)
notes: The leader of 'Concerned Nigerians' and several others are arrested at Unity Fountain during a protest against the federal government's insistence of a secret trial for the Biafran group leader, Nnamdi Kanu.
target_text: actor1: Protesters (Nigeria), actor2: Police Forces of Nigeria (2015-)