Boko Haram's Shekau says he is 'in good health' following claim of his death

The disputed leader of Nigerian Islamist group Boko Haram has released a video message denying a claim by the military that he was killed or badly wounded in air strike last month.

Abubakar Shekau appeared healthy in the video in which he spoke in Arabic, Hausa and the Kanuri language.
It is not clear when it was recorded.