Syrian and Afghan migrants clash at the train station in Beli Manastir, Croatia 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. (Photo by Laszlo Balogh/Reuters)





A woman holding a baby rushes away from the train station as Syrian and Afghan migrants clash in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants rest at a gas station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A policeman intervenes as Syrian and Afghan migrants clash at the train station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A man wounded during clashes between Syrian and Afghan migrants looks on at the train station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A migrant carries a child in a train at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A woman wounded during clashes between Syrian and Afghan migrants is attended at the train station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A policeman intervenes as Syrian and Afghan migrants clash at the train station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants scramble through a train's window at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants rest at a gas station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants scramble through a train's window at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants wrestle to buy train ticket at the train station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants wrestle to buy train ticket at the train station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A migrant tries to get on a train through a window at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants queue to buy train ticket at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants scramble through a train's window at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants wait at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A wounded man lies on the ground after clashes between Syrian and Afghan migrants at the train station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A man reacts as Syrian and Afghan migrants clash at the train station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A wounded man is attended after clashes between Syrian and Afghan migrants at the train station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants scramble aboard a train at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants wrestle to buy train ticket at the train station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants scramble aboard a train at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Policemen run as Syrian and Afghan migrants clash at the train station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A migrant child cries as migrants scramble aboard a train at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A wounded man lies on the ground after clashes between Syrian and Afghan migrants at the train station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A wounded man is attended after clashes between Syrian and Afghan migrants at the train station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants gesture after they scrambled aboard a train at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants wait at the train station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A migrant carries a child in a train at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A migrant child looks out of a bus at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants look out of a train window at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants wait inside a train at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrant children wait inside a train at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A migrant child holds a baby at the trainstation in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





Migrants wait inside a train at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A migrant child sits on the ground at the train station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A migrant holds his child as they try to enter a bus at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A migrant carries a child in a train at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)





A migrant carries a child as they enter a bus at the station in Beli Manastir, Croatia September 18, 2015. (Photo by Laszlo Balogh/Reuters)