actor1: Police Forces of Nigeria (1999-2015)
actor2: Unidentified Armed Group (Nigeria)
notes: Boko Haram (actor not confirmed) attacks a prison in Koton Karifi, overpowers security forces and frees 145 inmates. Two deaths reported, both security forces. Several fugitives were recovered by police in the following days.
target_text: actor1: Police Forces of Nigeria (1999-2015), actor2: Unidentified Armed Group (Nigeria)