Boko Haram leader Abubakar Shekau reported to have killed himself

The leader of the militant Islamist group Boko Haram in Nigeria is reported to have killed himself, after being tracked down by rival militants from the Islamic State West African Province.

Islamic State will now become the pre-eminent jihadi force in the region, which is a dangerous development for the region.

Producer: Lizzy Amanpour