A Greek riot police officer (front R) stands guard as migrants and refugees wait a registration procedure at the national stadium of the Greek island of Kos, August 12, 2015. Greek police used fire extinguishers and batons against migrants on the island of Kos on Tuesday after violence broke out in a sports stadium where hundreds of people, including young children, were waiting for immigration papers. (Photo by Alkis Konstantinidis/Reuters)

Greek riot police stand guard in front of a police bus as migrants and refugees wait to be registered at the national stadium of the island of Kos, August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

A Greek riot police officer (front L) stands guard as migrants and refugees wait to be registered at the national stadium of the Greek island of Kos, August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

A migrant girl (C) sleeps as she waits to be registered outside the national stadium of the Greek island of Kos, August 12, 2015. The United Nations refugee agency (UNHCR) called on Greece to take control of the "total chaos" on Mediterranean islands, where thousands of migrants have landed. About 124,000 have arrived this year by sea, many via Turkey, according to Vincent Cochetel, UNHCR director for Europe. (Photo by Alkis Konstantinidis/Reuters)

Migrants sleep as they wait to be registered outside the national stadium of the Greek island of Kos, August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

Migrants climb a wall of the national stadium of the Greek island of Kos, where a registration exercise for the migrants are taking place, August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

Migrants and refugees stand in a crowded line during a registration procedure at the national stadium of the Greek island of Kos, August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

A riot police officer moves towards a migrant as he tries to maintain an orderly line during a registration procedure at the national stadium of the Greek island of Kos, August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

Riot police move through a crowd of migrants and refugees during a registration procedure at the national stadium of the Greek island of Kos, August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

A Syrian refugee shouts as Syrian refugees are pushed by riot police trying to maintain an orderly line during a registration procedure at the national stadium of the Greek island of Kos, August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

A Syrian refugee (C) tries to catch his breath as he stands in a crowded line to get registered in the national stadium of the Greek island of Kos, August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

Migrants and refugees shout as they are pushed by riot police who are trying to prevent them from re-entering the national stadium during a registration procedure on the Greek island of Kos August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

A riot police officer pushes a migrant as he tries to maintain an orderly line during a registration procedure at the national stadium of the Greek island of Kos August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

A child cries as Syrian refugees wait in line during a registration procedure at the national stadium of the Greek island of Kos, August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

A migrant woman (C) holds her passport and papers as she is pushed while standing in a crowded line during a registration procedure at the national stadium of the Greek island of Kos, August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

A Syrian refugee drinks water as he is packed in a crowded line during a registration procedure at the national stadium of the Greek island of Kos, August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

A Syrian refugee (C) tries to catch his breath as he stands in a crowded line to get registered in the national stadium of the Greek island of Kos, August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

Migrants and refugees are packed in a crowded line during a registration procedure at the national stadium of the Greek island of Kos, August 12, 2015. (Photo by Alkis Konstantinidis/Reuters)

Kashmiri villagers watch the funeral procession of a civilian, Bilal Ahmad Bhat, at Padgampora village in Pulwama district, south of Srinagar, August 12, 2015. Bhat was killed on Tuesday after Indian security forces allegedly opened fire on protesters who were protesting against the killings of two suspected militants in an encounter with Indian security forces, local media reported. (Photo by Danish Ismail/Reuters)

Relatives weep during the funeral procession of a civilian, Bilal Ahmad Bhat, at Padgampora village in Pulwama district, south of Srinagar, August 12, 2015. (Photo by Danish Ismail/Reuters)

Job seekers carry a woman who fainted at the Indonesia Spectacular Job Fair 2015 at Gelora Bung Karno stadium in Jakarta August 12, 2015. Indonesia's gross domestic product grew at 4.67 percent in the second quarter, its slowest pace in six years. Since he took office last October, Widodo's government has passed a raft of measures aimed at boosting industry and consumption that have been criticized by investors as protectionist. (Photo by Reuters/Beawiharta)

Job seekers are seen sitting on a flight of stairs at the Indonesia Spectacular Job Fair 2015 at Gelora Bung Karno stadium in Jakarta August 12, 2015. (Photo by Reuters/Beawiharta)

An Indonesian youth pulls along her friend's arm as they jostle within a queue at the Indonesia Spectacular Job Fair 2015 at Gelora Bung Karno stadium in Jakarta August 12, 2015. (Photo by Reuters/Beawiharta)

Job seekers scream as they jostle within a queue at the Indonesia Spectacular Job Fair 2015 at Gelora Bung Karno stadium in Jakarta August 12, 2015. (Photo by Reuters/Beawiharta)

A woman, who fainted, is carried by others at the Indonesia Spectacular Job Fair 2015 at Gelora Bung Karno stadium in Jakarta August 12, 2015. (Photo by Reuters/Beawiharta)

Job seekers queue at the Indonesia Spectacular Job Fair 2015 at Gelora Bung Karno stadium in Jakarta August 12, 2015. (Photo by Reuters/Beawiharta)

Job seekers scream as they jostle within the queue at the Indonesia Spectacular Job Fair 2015 at Gelora Bung Karno stadium in Jakarta August 12, 2015. (Photo by Reuters/Beawiharta)

Job seekers queue at the Indonesia Spectacular Job Fair 2015 at Gelora Bung Karno stadium in Jakarta August 12, 2015. (Photo by Reuters/Beawiharta)