Campo de refugiados de Ritsona

A Syrian Kurdish woman hangs out washing at Ritsona refugee camp north of Athens, which hosts about 600 refugees and migrants on Monday, Sept. 19, 2016. The European Union's border agency says the number of migrants arriving in the Greek islands has increased significantly over the last month.(AP Photo/Petros Giannakouris)Petros Giannakouris (AP)

A Syrian man cooks on a makesift fire at Ritsona refugee camp north of Athens, which hosts about 600 refugees and migrants on Monday, Sept. 19, 2016. The European Union's border agency says the number of migrants arriving in the Greek islands has increased significantly over the last month. (AP Photo/Petros Giannakouris)Petros Giannakouris (AP)

Migrants sleep on camp beds at a Red Cross center in the city of Ventimiglia on the French-Italian border, on September 14, 2016. According to Italy's interior ministry, about 124,500 migrants have arrived since the start of 2016, just slightly more than the 122,000 recorded for the whole of last year. Italy is sheltering growing numbers of would-be refugees as its neighbours to the north move to tighten their borders and make it harder for migrants to travel to their preferred destinations in northern Europe. / AFP PHOTO / VALERY HACHEVALERY HACHE (AFP)

Migrants waits at a Red Cross center in the city of Ventimiglia on the French-Italian border, on September 14, 2016. According to Italy's interior ministry, about 124,500 migrants have arrived since the start of 2016, just slightly more than the 122,000 recorded for the whole of last year. Italy is sheltering growing numbers of would-be refugees as its neighbours to the north move to tighten their borders and make it harder for migrants to travel to their preferred destinations in northern Europe. / AFP PHOTO / VALERY HACHEVALERY HACHE (AFP)

A woman sweeps a path among the tents at the Ritsona refugee camp north of Athens, which hosts about 600 refugees and migrants on Monday, Sept. 19, 2016. The European Union's border agency says the number of migrants arriving in the Greek islands has increased significantly over the last month. (AP Photo/Petros Giannakouris)Petros Giannakouris (AP)

In this photo taken on Friday, Sept. 9, 2016, a woman cooks at Ritsona refugee camp north of Athens, which hosts about 600 refugees and migrants. Most of the people at the camp arrived in Greece in March, crossing to Lesbos and Chios just ahead of an agreement between the EU and Turkey that took effect. Under the deal, anyone arriving on Greek islands from Turkey on or after March 20 would be held on the island and face being returned to Turkey. Balkan countries began restricting crossings of their borders in early 2016, and shut them completely in early March, stranding tens of thousands of people in Greece. (AP Photo/Petros Giannakouris)Petros Giannakouris (AP)