Video - Boko Haram leader Shekau dismisses reports of his replacement in the group

Boko Haram's shadowy leader Abubakar Shekau has appeared in a new video shrugging off an apparent split in the hard-line jihadist group. Last week, Shekau said in an audio message that he was still the head of Boko Haram despite his purported replacement by former Boko Haram spokesman, Sheikh Abu Musab al-Barnawi. Shekau ridiculed suggestions that he was dead, and looked more composed and energetic than in previous appearances.