Boko Haram domineert uiterste noorden Nigeria

After a crackdown pushed them out of Nigeria's northern cities, Islamist militant group Boko Haram have regrouped, rearmed and are staging a bold comeback that has already allowed them to seize control over parts of the northeast. Using porous borders with Chad, Niger and Cameroon in the desolate scrubland around Lake Chad, they are smuggling bigger weapons, staging cross-border raids, killing and kidnapping in an escalation of violence that could further draw Nigeria's neighbors into its counter-insurgency fight, security officials say.

The Islamists now control at least 10 of the 27 local council areas in Borno state, Nigeria's most remote northeastern region on the edge of the Sahara and a relic of one of Africa's oldest medieval Islamic empires, security sources there say. One says the real figure could be closer to 20, as local councilors fearing assassination have fled, leaving a power vacuum filled by bearded radicals with automatic rifles.