Ukrainian military vehicles move past Independence square in central Kyiv on February 24, 2022. Air raid sirens rang out in downtown Kyiv today as cities across Ukraine were hit with what Ukrainian officials said were Russian missile strikes and artillery. Russian President announced a military operation in Ukraine on February 24, 2022, with explosions heard soon after across the country and its foreign minister warning a "full-scale invasion" was underway.,Image: 664615268, License: Rights-managed, Restrictions: , Model Release: no, Credit line: Profimedia