Little relief in Sudan's neglected Nuba Mountains
Humanitarian organisations still not permitted to enter areas of conflict - UN
S. Sudan starts demobilising soldiers - paper
The plan will help 80,000 government troops lay down their arms over several years
Bashir says would not negotiate with Sudan rebels
Government forces are poised to attack a stronghold of armed rebels in Blue Nile state - report
River basins could double food production - study
River basins of Africa, Asia and Latin America could sustainable boost food production in coming decades - though competition for water could stand in the way