Borno Elders Forum say Boko Haram have surrounded Maiduguri

Nigeria's militant Islamists have "completely surrounded" Maiduguri, the main city in north-eastern Borno state, traditional elders have warned.

The military needed to "fortify" the city, which had a population of more than two million, to prevent an assault "from all directions", they said.

The Boko Haram militants had "annexed" areas that were about 50km (30 miles) from Maiduguri, they said.

Boko Haram declared a caliphate in areas it controls last month.

The government has not yet commented on the statement issued by the Borno Elders Forum (BEF).  http://www.bbc.com/news/world-africa-29155529