Nigerian police say they ' ve arrested senior Boko Haram leaders . The group based its account on media reports and field investigations . They say Mohammed Zakari calls himself ` ` chief ##tain '' of the Black Triangle . That 's a region of northeast Nigeria where they claim to have routed Boko rebels . The terror group has been blamed for deadly attacks in recent years .
Nigerian police say they ' ve arrested senior Boko Haram leaders . They say Mohammed Zakari calls himself ` ` chief ##tain '' of the Black Triangle . That 's a region of northeast Nigeria where they claim to have routed Boko rebels . The terror group has been blamed for deadly attacks in recent years .