As war rages in Ukraine, some children remain near the front lines: "She is used to the sirens"

The children flicker like ghosts on the empty playgrounds in weedy courtyards deep in a city whose residents have been told to get out now.

Six-year-old Tania has no more playmates left on her street in the eastern Ukraine city of Kramatorsk. She sits on a bench only steps away from the city's train station that was attacked by Russia in April, killing more than 50 people who had gathered there to evacuate. The remnants of a rocket from that attack bore the inscription in Russian: "For the children."

Tania and her parents aren't afraid to stay. In the shade near the now-closed station, they enjoy whatever quiet remains between the booms of outgoing artillery trying to keep out Russian forces.