South Sudan agrees deal on arms to let rebel Machar return - mediator
Riek Machar to become president's deputy
Countries on verge of beating malaria face new threat, study says
Looking at countries with low malaria transmission, the study found signs of diminishing political and financial commitment
South Sudan and rebels say deal reached for Machar's return
There is growing concern over Riek Machar's failure to return to Juba to take up post of vice president
South Sudan peace deal "at risk" after Machar delayed return - monitors
There's growing concern over rebel leader's failure to return to Juba this week to take up post as vice president
U.N.concerned by Machar delay in return to South Sudan capital
Machar had been due to return to Juba on Monday to take up his old post as vice president under a peace deal
U.N. chief urges rival South Sudan leaders to form government soon
More than two million people have been displaced in fighting that erupted barely two years after independence
Sudan concludes Darfur referendum amid opposition boycott
A referendum was held on whether to reunite the states of Sudan's Darfur region, amid a boycott by rebel groups
Mental health care in emergencies 'not an optional luxury' - experts
"The problem with mental health is it's often invisible because it's not measured, so people may not think it's important"