Refugees, among them children get off a rubber raft upon arrival on the Greek island of Lesbos after crossing the Aegean Sea from Turkey.

Refugees, among them children are wrapped in thermal blankets upon arrival on the Greek island of Lesbos after they were rescued from their sinking rubber raft by marine police near Skala Sikaminias village's shore after crossing the Aegean Sea from Turkey.

Refugees, among them children from the Middle East and Central Asia queue at the Moria registration centre on the Greek island of Lesbos after they walked for more than a day from the shore where their boat landed. They have to wait in line without shelter, food or water for several more days before they are allowed to enter the registration centre for processing.

A refugee child with his family cover themselves with plastic while waiting for their turn to board a bus in Miratovac, Serbia. The bus will take them to Presevo refugee registration camp before they can continue their journey to Western Europe via other Balkan countries.

A refugee family walk through a corn field in Sid, Serbia on their way towards Croatia to continue their journey to Western Europe via the Balkan countries.

Refugees, among them children walk through a corn field in Sid, Serbia on their way towards Croatia to continue their journey to Western Europe via the Balkan countries.

A father carries his child while queuing for many hours in the rain to get inside the registration camp in Presevo, Serbia during their journey throughout the Balkan countries on their way to Western Europe.

Refugees, among them children walk through the village of Dobova, Slovenia escorted by a horse-riding Slovenian police.

Refugees, among them children from countries such as Syria, Afghanistan and Iraq march under the watchful eyes of horse-riding Slovenian police officers who are escorting them during the 10 kilometres walk to a refugee registration center in Brezice, Slovenia.

A refugee from the Middle East and his child takes a break at an open field after walking for a few hours in the middle of a cold night towards a refugee registration center in Brezice, Slovenia.

Refugees, among them children mostly from Syria, Afghanistan and Iraq burn campfires at an area near the Slovenian-Austrian border while waiting to cross into Austria. Temperature drops to as low as 0 degree Celcius during the night forcing refugees to burn tree branches to turn into campfires to keep warm.

A refugee family burn a blanket to make campfire at an area near the Slovenian-Austrian border as they wait to cross into Austria. Temperature drop to as low as 0 degree Celcius during the night forcing refugees to burn what they can to turn into campfires to keep warm.

A child refugee from a middle eastern country aboard a bus outside the refugee registration center in Brezice, Slovenia moments before being transported to the Slovenian border with Austria.

Drawings by arriving refugee children from countries such as Syria, Afghanistan and Iraq are pasted on a wall inside a refugee reception tent set up by the authorities to welcome and help arriving refugees at Frankfurt central station, Germany.

Refugees from Middle Eastern countries at Friedland refugee camp in Germany. The camp has hosted displaced people since the end of World War II.

Children refugees from Middle Eastern countries at a playground in Friedland refugee camp in Germany.