NEW : Large areas of Mogadishu are suffering from famine . NEW But the militants kept their ban on aid groups operating in their territory in southern and central Somalia and parts of the capital . : CNN -linked Al-Shabaab has been waging an insurgency since weekend . Group retreated from the capital of Somalia over 2006 . Insurgents promise to keep on fighting .
NEW : Large areas of Mogadishu are suffering from famine . NEW : CNN -linked Al-Shabaab has been waging an insurgency since weekend . Group retreated from the capital of Somalia over 2006 . Insurgents promise to keep on fighting .