Children being treated at a pediatrics hospital have their beds placed in the basement of the hospital which is being used as a bomb shelter, in Kyiv on February 28, 2022. - The Russian army said on February 28, 2022, that Ukrainian civilians could "freely" leave the country's capital Kyiv and claimed its airforce dominated Ukraine's skies as its invasion entered a fifth day. (Photo by Aris Messinis / AFP)