ISIS accepts Boko Haram's offer of allegiance

The Islamic State group has accepted a pledge of allegiance to the group made by the Nigerian  Boko Haram..According to AFP, a purported audiotape Thursday from its spokesman..Mohammed al-Adnani confirms they are expanding to West Africa..In the  message, using the name in Arabic of the Nigerian group..it reads

“We announce to you to the good news of the expansion of the caliphate to West Africa because the caliph… has accepted the allegiance of  our brothers of the Sunni group for preaching and the jihad,”

This comes as US intelligence official said there is no evidence of ISIS links in Nigeria,calling it mere propaganda..