Migrants and refugees sing and dance during a party at a makeshift camp at the Greek-Macedonian border near the village of Idomeni, Greece, March 27, 2016. (Photo by Marko Djurica/Reuters)





A child looks outside a train wagon at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 28, 2016. (Photo by Marko Djurica/Reuters)





Migrants and refugees queue to receive food at a makeshift camp at the Greek-Macedonian border near the village of Idomeni, Greece, March 28, 2016. (Photo by Marko Djurica/Reuters)





A child walks on a train wagon at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 28, 2016. (Photo by Marko Djurica/Reuters)





Children play on a slide at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 28, 2016. (Photo by Marko Djurica/Reuters)





A child sits by the soccer goalpost at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 28, 2016. (Photo by Marko Djurica/Reuters)





A migrant looks out from his tent at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 28, 2016. (Photo by Marko Djurica/Reuters)





An elderly migrant couple takes a rest at railway tracks at a makeshift camp at the Greek-Macedonian border near the village of Idomeni, Greece, March 28, 2016. (Photo by Marko Djurica/Reuters)





Migrants and refugees queue to receive food at a makeshift camp at the Greek-Macedonian border near the village of Idomeni, Greece, March 28, 2016. (Photo by Marko Djurica/Reuters)





A child climbs a ladder at a train wagon at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 28, 2016. (Photo by Marko Djurica/Reuters)





Migrants and refugees collect firewood at a makeshift camp at the Greek-Macedonian border near the village of Idomeni, Greece, March 28, 2016. (Photo by Marko Djurica/Reuters)





Migrants and refugees shout slogans during a protest at a makeshift camp at the Greek-Macedonian border near the village of Idomeni, Greece, March 28, 2016. (Photo by Marko Djurica/Reuters)





A migrant walks along railway tracks at a makeshift camp at the Greek-Macedonian border near the village of Idomeni, Greece, March 28, 2016. (Photo by Marko Djurica/Reuters)





Migrants and refugees shout slogans during a protest at a makeshift camp at the Greek-Macedonian border near the village of Idomeni, Greece, March 28, 2016. (Photo by Marko Djurica/Reuters)





Migrants stands in line after disembarking from the Norwegian vessel Siem Pilot at Pozzallo's harbour, Italy, March 29, 2016. (Photo by Antonio Parrinello/Reuters)





A migrant is inspected by policemen after disembarking from the Norwegian vessel Siem Pilot at Pozzallo's harbour, Italy, March 29, 2016. (Photo by Antonio Parrinello/Reuters)





A migrant is inspected by policemen after disembarking from the Norwegian vessel Siem Pilot at Pozzallo's harbour, Italy, March 29, 2016. (Photo by Antonio Parrinello/Reuters)





Migrants are inspected by policemen as they disembark from the Norwegian vessel Siem Pilot at Pozzallo's harbour, Italy, March 29, 2016. (Photo by Antonio Parrinello/Reuters)





A migrant walks after disembarking from the Norwegian vessel Siem Pilot at Pozzallo's harbour, Italy, March 29, 2016. (Photo by Antonio Parrinello/Reuters)





Migrants stand in line after disembark from the Norwegian vessel Siem Pilot at Pozzallo's harbour, Italy, March 29, 2016. (Photo by Antonio Parrinello/Reuters)





Migrants stand in line after disembarking from the Norwegian vessel Siem Pilot at Pozzallo's harbour, Italy, March 29, 2016. (Photo by Antonio Parrinello/Reuters)





A migrant stands in line after disembarking from the Norwegian vessel Siem Pilot at Pozzallo's harbour, Italy, March 29, 2016. (Photo by Antonio Parrinello/Reuters)





A child walks as Greek police officers stand guard after minor clashes occurred at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 29, 2016. (Photo by Marko Djurica/Reuters)





Children play along railway tracks at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 29, 2016. (Photo by Marko Djurica/Reuters)





Migrants and refugees look on after minor clashes with Greek policemen occurred at a makeshift camp at the Greek-Macedonian border near the village of Idomeni, Greece, March 29, 2016. (Photo by Marko Djurica/Reuters)





A child places his hands on a fence as Greek police officers stand guard after minor clashes occurred at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 29, 2016. (Photo by Marko Djurica/Reuters)





A woman sits with her children along railway tracks at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 29, 2016. (Photo by Marko Djurica/Reuters)





Children play at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 29, 2016. (Photo by Marko Djurica/Reuters)





A woman bathes a child at railway tracks at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 30, 2016. (Photo by Marko Djurica/Reuters)





Youth enjoy the sea near a makeshift camp for refugees and migrants at the port of Piraeus, Greece March 30, 2016. (Photo by Alkis Konstantinidis/Reuters)





Migrants stranded in Greece, along with human rights activists and students, shout slogans during a protest against recent border closures across the Balkans in Athens, Greece, March 30, 2016. (Photo by Alkis Konstantinidis/Reuters)





Children play at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 30, 2016. (Photo by Marko Djurica/Reuters)





Children look out from a train wagon at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 30, 2016. (Photo by Marko Djurica/Reuters)





Migrants and refugees queue for food at a makeshift camp at the Greek-Macedonian border near the village of Idomeni, Greece, March 30, 2016. (Photo by Marko Djurica/Reuters)





Migrants and refugees exercise at a makeshift camp at the Greek-Macedonian border near the village of Idomeni, Greece, March 30, 2016. (Photo by Marko Djurica/Reuters)





Children stand in their tent at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 31, 2016. (Photo by Marko Djurica/Reuters)





A woman holds a child at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 31, 2016. (Photo by Marko Djurica/Reuters)





A refugee carries his belongings before boarding a bus heading to other parts of the country where refugees and migrants will be accommodated, at the port of Piraeus, near Athens, Greece March 31, 2016. (Photo by Alkis Konstantinidis/Reuters)





A child prepares to lift a bag before boarding a bus heading to other parts of the country where refugees and migrants will be accommodated, at the port of Piraeus, near Athens, Greece March 31, 2016. (Photo by Alkis Konstantinidis/Reuters)





A woman walks through the makeshift refugee camp at the northern Greek border point of Idomeni, Greece, Monday, March 28, 2016. Over 11,000 refugees and migrants stranded at this makeshift encampment, some for weeks, after Balkan countries on what used to be the busiest migrant route to central and northern Europe shut down their borders. (Photo by Darko Vojinovic/AP Photo)





A migrant girl looks from inside a railway wagon at a train station near the makeshift refugee camp at the northern Greek border point of Idomeni, Greece, Monday, March 28, 2016. (Photo by Darko Vojinovic/AP Photo)





A refugee child holds a ball while walking between tents at the transit center for refugees near northern Macedonian village of Tabanovce on the border with Serbia, Monday, March 28, 2016. (Photo by Boris Grdanoski/AP Photo)





A woman passes rubble as she walks through the makeshift refugee camp at the northern Greek border point of Idomeni, Greece, Monday, March 28, 2016. (Photo by Darko Vojinovic/AP Photo)





Migrants wait for food in the makeshift refugee camp at the northern Greek border point of Idomeni, Greece, Monday, March 28, 2016. (Photo by Darko Vojinovic/AP Photo)





Migrant children look from inside a rail car at a train station near a makeshift refugee camp at the northern Greek border point of Idomeni, Greece, Monday, March 28, 2016. (Photo by Darko Vojinovic/AP Photo)





A man combs his hair by looking himself on a mobile phone while children play by their tent at the transit center for refugees near northern Macedonian village of Tabanovce on the border with Serbia, Monday, March 28, 2016. (Photo by Boris Grdanoski/AP Photo)





A refugee woman washes clothes outside a tent in a freezing morning at the transit center for refugees near northern Macedonian village of Tabanovce on the border with Serbia Monday, March 28, 2016. (Photo by Boris Grdanoski/AP Photo)