Nearly a decade after the insurgency by Boko Haram jihadists plunged first Nigeria and later its neighbours into chaos, the security and humanitarian crises in the region remain severe.
The U.N. warned at current levels the earth could be awash with 12 billion tonnes of plastic trash by the middle of the century.
Donors at an April conference in Brussels pledged some $4.4 billion to help civilians affected by Syria's devastating seven-year war, but much of that money has yet to arrive.
The U.N. Human Rights Council voted Friday to send a team of international war crimes investigators to probe the deadly shootings of Gaza protesters by Israeli forces.
War crimes judges will hold closed-door talks next month to discuss whether to allow the launch of a probe into the forced exodus of Rohingya Muslims from Myanmar.
U.N. peacekeepers from Nepal are facing allegations of child rape in South Sudan, the U.N. spokesman said Monday, describing the case as "especially heinous."
The United Nations said on Wednesday that it has conducted its first humanitarian mission to Raqqa since the Syrian city was liberated from the Islamic State group.
U.N. investigators said on Tuesday they had begun sifting through "unprecedented" amounts of information related to horrific crimes committed in Syria's seven-year war.
The protracted state of emergency in Turkey has caused serious human rights abuses against "hundreds of thousands of people."
Syrian troops and government-linked militia have systematically raped and sexually abused civilians, according to a U.N.-backed report.
A significant drop in Indian girls being forced into marriage has led a global decline in the number of child brides, the United Nations said Tuesday.
Since February 18, the Syrian regime forces killed more than 640 civilians -- including over 150 children -- in bombardment of Eastern Ghouta.
A U.N. rights commission in South Sudan said Friday there was sufficient evidence to charge at least 41 senior officers and officials with war crimes.
Air strikes hit Syria's Eastern Ghouta for a third straight day on Tuesday, bringing the civilian death toll to nearly 200.
People are trying to flee most dangerous parts of Eastern Ghouta, a rebel-held enclave near the Syrian capital of Damascus.
The United Nations will be involved in the controversial process of returning Rohingya refugees from Bangladesh to Myanmar, a minister said Monday.
UNHCR has identified almost 400 Rohingya households that are currently most at risk of being swept away by floods and landslides during the rainy season in Bangladesh.
Surging violence across Yemen had pushed some 85,000 people from their homes in the past 10 weeks, the UN Refugee Agency said.