Saudi Arabia leads air strikes against Yemen's Houthi rebels
Warplanes bomb the main airport and the nearby al Dulaimi military air base of the Houthi-held capital Sanaa
Saudi Arabia, allies launch air strikes in Yemen against Houthi fighters
Egypt, Jordan, Sudan, Pakistan ready to join ground offensive - al-Arabiya
Ex-Congo child soldier apologizes at U.N. for 1990s killings
Armed groups, not government forces, pose biggest challenge for their brutality and violence toward children, UN says
Sanctions threat won't deter counter-attacks - S. Sudan president
Thousands of people have been killed and more than a million uprooted in more than a year of fighting
Drug-resistant TB threatens to kill 75 mln people by 2050, cost $16.7 trln
Experts warn that human and economic cost of TB strains resistant to drugs is accelerating fast
Nine-year-old girl in record release of South Sudan child soldiers
More than 12,000 children have been recruited by armed groups in South Sudan since civil war began in 2013
Egypt, Ethiopia, Sudan sign agreement on Nile dam
Egypt has sought assurances that the dam will not significantly cut the river's flow to its rapidly growing population
Iraqi Sunnis accuse Shi'ite paramilitaries of burning homes outside Tikrit
Militia fighters battling Islamic State accused of looting, blowing up or setting fire to houses in town of al-Dour near Tikrit