ISIS reportedly has seized villages near Syria's border with Turkey, trapping tens of thousands of civilians. The evacuated hospital outside Azaz is the aid group's largest medical facility in Syria.
The group pulled out this month, citing concerns that nations won't have to follow through on commitments made at the summit. We spoke with Executive Director Jason Cone.
The group says armed men killed a staff member during an attack on a convoy that lasted more than 40 minutes. It's one of many recent attacks worldwide on the group's staff.
The airstrikes killed 42 people at a civilian hospital in Kunduz, Afghanistan, in October 2015. U.S. officials say personnel attacked the wrong target.