myanmar says its latest crackdown is in response to attacks by the rohingya militant group known as arsa. yet 360,000 of those that have fled are children. with thousands more on their way, the scale of this humanitarian crisis is unprecedented. what do you think would be happening if there's nobody from the outside coming in to help? >> they'd starve. >> you think they would starve? >> they are coming in exhausted and hungry. >> reporter: this entire region is a sea of black and blue tarps, as far as the eye can see. we hike 45 minutes through the camp to get to a clinic in the hills. the conditions are dire. a lot of kids here. >> yeah, 60% of the 600,000 kids that cross the border are children. so this is really a children's crisis more than anything else. this is really the front lines of the response. in terms of health. we're literally racing to contain a health crisis. before it explodes and spreads. >> reporter: but many children here are already very sick. as we see firsthand at this unicef feeding center. what happened with your son? >> translator: he is losing weight day by da