New Boko Haram leader announced by IS 

The Islamic State (IS) militant group has announced that its West African affiliate Boko Haram has a new leader. 

Abu Musab al-Barnawi, who was previously spokesman for the Nigerian-based Islamists, is featured in the latest issue of an IS magazine.  

It makes no reference to Abubakar Shekau, Boko Haram's leader since 2009. 

He was last heard from an audio message last August, saying he was alive and had not been replaced - an IS video released in April said the same. 

Boko Haram, which has lost most of the territory it controlled 18 months ago is fighting to overthrow Nigeria's government.  

Its seven-year insurgency has left 20,000 people dead, mainly in the country's north-east. 

BBC