Over 50,000 children could die this year of diseases and malnutrition, UN officials say while seeking $1bn in support.
The United Nations has urged Papua New Guinea to act to halt attacks against women - and sometimes men - over the belief that they are witches.
The UN Security Council has condemned attacks by Islamist militants in two major Iraqi cities, Mosul and Tikrit.
A UN report says there is "ample evidence" that both sides in the conflict in the Central African Republic (CAR) have committed war crimes and crimes against humanity.
WHO says more than 200 people have died in one of the worst ever outbreaks of the deadly feverGå til kilden
UN's International Labour Organisation says austerity measures brought on by governments have hurt the world's poorest.Gå til kilden
A convoy of chemical weapons inspectors and UN staff that was travelling to a site of an alleged chlorine gas attack in Syria has come under attack.
The UN Security Council has approved sanctions against the Nigerian militant group Boko Haram, five weeks after it kidnapped more than 200 schoolgirls.
Russia and China have vetoed a UN Security Council resolution that would have referred the conflict in Syria to the International Criminal Court (ICC)