toward the capital city and could be within 10 miles. more than a million ukrainians are still in kyiv, and many say they are prepared to give their lives to defend it. and meanwhile, a humanitarian crisis unfolding in the southern ukrainian state of city of mariupol. residents there have reportedly had no food, no clean drinking water for more than a week. want to bring in now alex wade, doctors without borders. alex, thank you for joining us. now, i understand friday russian airstrikes killed they hit near a kinner garten building there kindergarten building. i understand one person at least has been killed. you were in mariupol a couple of days ago, and mariupol was obliterated. i would like you now to describe the scene as you see it, and how long can you stay there to help? well, so i was in mariupol a