Monitor: 60,000 have died in Syrian government jails during war
U.N. investigators said in February that detainees held by the Syrian government were being killed on a massive scale
FACTBOX-Ten facts about Boko Haram's seven-year insurgency
Boko Haram controlled land in Nigeria around the size of Belgium in 2015, this and other facts about the militant group
Can the World Humanitarian Summit help create a new climate for peace?
By joining up action – and funding - on climate change, conflict and poverty, the world’s biggest crises could get easier to manage
First U.N. global aid summit seen falling short as crises mount
Boycotted by MSF and snubbed by Russia's president, can World Humanitarian Summit meet its ambitions?
Celebrities urge British government to reunite more refugee children with families
Celebrities supporting the campaign include singer Jessie Ware and actor Ewan McGregor
Migrants test "closed" Balkan borders to chase European dream
To reach their destinations, migrants now rely on their wits, determination and shadowy people-smugglers
Hollywood star Ashley Judd becomes anti-slavery group ambassador
Actress hopes her involvement will focus public's attention on eradicating human trafficking
NATO agrees bigger Mediterranean mission to stop smugglers
NATO's help is aimed at fending off a repeat of last year's uncontrolled migrant flows across the Mediterranean
Preventing a lost generation: Refugee children must learn
Investing in refugee education is not only the right thing to do, it’s also the smart thing