By TIME PhotoAugust 21, 2015 8:37 PM EDTRead Next: Photographer Shows Children Caught in Clash at the Greek BorderMen help a fellow migrant as they are stuck between Macedonian riot police officers and other migrants during a clash near the border train station of Idomeni, northern Greece. They are waiting to be allowed by the Macedonian police to cross the border from Greece to Macedonia, on Aug. 21, 2015. Darko Vojinovic—APA woman looks up at police blocking a group of migrants trying to cross the Macedonian-Greek border near the town of Gevgelija on Aug. 21, 2015.Robert Atanosovski—AFP/Getty ImagesA migrant child and her father pass through a cordon of policeman and manage to enter Macedonia, after being held in the border zone between Greece and Macedonia, on Aug. 21, 2015.NurPhoto/REX ShutterstockA family of migrants enters Macedonia after being held in the border zone, since the country had declared emergency and closed its south border with Greece, on Aug. 21, 2015.NurPhoto/REX ShutterstockAn aerial view of migrants queueing to pass the border to Gevgelija, Macedonia, from the border village of Idomeni, Greece, on Aug. 21, 2015.Nikos Arvaniditis—EPA