An elderly woman sits on a bench wrapped in a blanket in a subway station turned into a shelter in Kyiv, Ukraine, Tuesday, March 8, 2022. Demands for ways to safety evacuate civilians have surged along with intensifying shelling by Russian forces, who have made significant advances in southern Ukraine but stalled in some other regions. Efforts to put in place cease-fires along humanitarian corridors have repeatedly failed amid Russian shelling. (AP Photo/Vadim Ghirda)
Two million people — half of them children — have fled Ukraine in the less than two weeks since Russia invaded the country, officials said Tuesday, as Europe's worst refugee crisis since World War II grows by the day.