Nearly one million people are living under siege in Syria, the UN aid chief said Monday, announcing revised figures. The new figure of 974,080 people marks a dramatic increase from 486,700 Syrians living in besieged areas just six months ago, Stephen O'Brien told the Security Council....

Turkey called on the United States and other nations Monday to rethink its proposal for a no-fly zone in northern Syria as the U.N. expressed deep concerns over the bombing of hospitals in rebel-held parts of Aleppo. Government forces pounded besieged rebel-held neighborhoods of the northern...

The United Nations warned Sunday that time was "running out" for efforts to avoid a humanitarian catastrophe in Syria's war-battered Aleppo, as fresh fighting there killed at least eight schoolchildren. US President Barack Obama urged greater efforts to end the violence when he met Russian...

 Fresh fighting shook Syria's Aleppo on Sunday with a rebel attack killing at least eight children at a school, as the UN's envoy struggled to push peace efforts in Damascus. The envoy, Staffan de Mistura, met with Syria's Foreign Minister Walid al-Moallem in Damascus for talks on the...