Migrants rest on beds at an improvised temporary shelter in a sports hall in Hanau, Germany September 18, 2015. Migrant numbers in Europe will build up in coming days and their flows may fragment further into new routes, the U.N. refugee agency said on Friday, urging the European Union to grasp a last chance to resolve the refugee crisis next week. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY 

Migrants are seen through the window of a special train arriving at the train station on their way to a temporary refugee registration center in Hanau, 30km south of Frankfurt, Germany, early September 17, 2015. REUTERS/ Kai Pfaffenbach 

Translations for common medical terms written in Arabic, German and English hang on a board at a sports hall in Hanau, Germany September 22, 2015. REUTERS/Kai Pfaffenbach

Migrants get assistance as they walk in an underpass after leaving a special train arriving at the train station on their way to a temporary refugee registration center in Hanau, 30km south of Frankfurt, Germany, early September 17, 2015. REUTERS/ Kai Pfaffenbach 

Wellwishers applaud as a Syrian woman carries her baby under a sign as they come through an underpass after leaving a special train arriving at the train station on their way to a temporary refugee registration center in Hanau, 30km south of Frankfurt, Germany, early September 17, 2015. REUTERS/ Kai Pfaffenbach 

A handwritten cardboard is seen at an improvised temporary shelter in a sports hall in Hanau, Germany September 22, 2015. When the flood of Middle Eastern refugees arriving in Europe finally ebbs and asylum-seekers settle down in their new homes, Germany could unexpectedly find itself housing the continent's largest Muslim minority. REUTERS/Kai Pfaffenbach 

Migrants pass a security check as they arrive at an improvised temporary shelter in a sports hall in Hanau, Germany September 22, 2015. When the flood of Middle Eastern refugees arriving in Europe finally ebbs and asylum-seekers settle down in their new homes, Germany could unexpectedly find itself housing the continent's largest Muslim minority. REUTERS/Kai Pfaffenbach 

A doctor conducts a medical test for newly arrived migrants at an improvised temporary shelter in a sports hall in Hanau, Germany September 22, 2015. When the flood of Middle Eastern refugees arriving in Europe finally ebbs and asylum-seekers settle down in their new homes, Germany could unexpectedly find itself housing the continent's largest Muslim minority. REUTERS/Kai Pfaffenbach 

A migrant undergoes a medical check at an improvised temporary shelter in a sports hall in Hanau, Germany September 22, 2015. When the flood of Middle Eastern refugees arriving in Europe finally ebbs and asylum-seekers settle down in their new homes, Germany could unexpectedly find itself housing the continent's largest Muslim minority. REUTERS/Kai Pfaffenbach 

Migrants collect food at an improvised temporary shelter in a sports hall in Hanau, Germany September 22, 2015. When the flood of Middle Eastern refugees arriving in Europe finally ebbs and asylum-seekers settle down in their new homes, Germany could unexpectedly find itself housing the continent's largest Muslim minority. REUTERS/Kai Pfaffenbach 

A migrant child carries food at an improvised temporary shelter in a sports hall in Hanau, Germany September 22, 2015. When the flood of Middle Eastern refugees arriving in Europe finally ebbs and asylum-seekers settle down in their new homes, Germany could unexpectedly find itself housing the continent's largest Muslim minority. REUTERS/Kai Pfaffenbach

A migrant child waits for food at an improvised temporary shelter in a sports hall in Hanau, Germany September 22, 2015. When the flood of Middle Eastern refugees arriving in Europe finally ebbs and asylum-seekers settle down in their new homes, Germany could unexpectedly find itself housing the continent's largest Muslim minority. REUTERS/Kai Pfaffenbach 

A migrant child plays at an improvised temporary shelter in a sports hall in Hanau, Germany September 22, 2015. When the flood of Middle Eastern refugees arriving in Europe finally ebbs and asylum-seekers settle down in their new homes, Germany could unexpectedly find itself housing the continent's largest Muslim minority. REUTERS/Kai Pfaffenbach

A migrant child uses a scooter at an improvised temporary shelter in a sports hall in Hanau, Germany September 18, 2015. Migrant numbers in Europe will build up in coming days and their flows may fragment further into new routes, the U.N. refugee agency said on Friday, urging the European Union to grasp a last chance to resolve the refugee crisis next week. REUTERS/Kai Pfaffenbach 

A migrant child sits on a terrace at an improvised temporary shelter in a sports hall in Hanau, Germany September 18, 2015. Migrant numbers in Europe will build up in coming days and their flows may fragment further into new routes, the U.N. refugee agency said on Friday, urging the European Union to grasp a last chance to resolve the refugee crisis next week. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

Donated articles for migrants are seen at an improvised temporary shelter in a sports hall in Hanau, Germany September 22, 2015. When the flood of Middle Eastern refugees arriving in Europe finally ebbs and asylum-seekers settle down in their new homes, Germany could unexpectedly find itself housing the continent's largest Muslim minority. REUTERS/Kai Pfaffenbach

Migrants look for donated clothes at an improvised temporary shelter in a sports hall in Hanau, Germany September 22, 2015. When the flood of Middle Eastern refugees arriving in Europe finally ebbs and asylum-seekers settle down in their new homes, Germany could unexpectedly find itself housing the continent's largest Muslim minority. REUTERS/Kai Pfaffenbach

A migrant tests a new pair of shoes at an improvised temporary shelter in a sports hall in Hanau, Germany September 18, 2015. Migrant numbers in Europe will build up in coming days and their flows may fragment further into new routes, the U.N. refugee agency said on Friday, urging the European Union to grasp a last chance to resolve the refugee crisis next week. REUTERS/ Kai Pfaffenbach 

A migrant sleeps in an improvised temporary shelter in a sports hall in Hanau, Germany September 22, 2015. When the flood of Middle Eastern refugees arriving in Europe finally ebbs and asylum-seekers settle down in their new homes, Germany could unexpectedly find itself housing the continent's largest Muslim minority. REUTERS/Kai Pfaffenbach 

Migrants rest on beds at an improvised temporary shelter in a sports hall in Hanau, Germany September 22, 2015. REUTERS/Kai Pfaffenbach 

Migrants rest on beds at an improvised temporary shelter in a sports hall in Hanau, Germany September 22, 2015. When the flood of Middle Eastern refugees arriving in Europe finally ebbs and asylum-seekers settle down in their new homes, Germany could unexpectedly find itself housing the continent's largest Muslim minority. REUTERS/Kai Pfaffenbach 

Migrants charge their mobile phones at a sports hall in Hanau, Germany September 22, 2015. REUTERS/Kai Pfaffenbach