Migrants warm themselves by the fire in front of an abandoned warehouse in Belgrade, Serbia today. Hundreds of migrants are sleeping rough in parks and make-shift shelters in the Serbian capital in freezing temperatures waiting for a chance to move forward toward the European Union. Photo Darko Vojinovic/AP
Several hundred refugees and migrants walk heading in the direction of the Hungarian border, in Belgrade, Serbia. Photo Marko Djurica/Reuters
A group of migrant and refugee children wait for hot food in sub zero temperatures near the Serbian-Croatian border in Presevo, Serbia
A migrant wrapped in a blanket to keep warm waits at a registration camp in southern Serbian town of Presevo on Friday, after crossing the Macedonian border
Migrants and refugees walk on Friday after crossing the Macedonian border in the Serbian village of Miratovac. Migrants and refugees are facing deteriorating weather conditions as they make their way to the EU via the Balkans
A child looks out of a bus window after walking from the Macedonian border into Serbia, in the village of Miratovac, Serbia, Wednesday. Hundreds of migrants continue to arrive daily into Serbia in order to register and continue their journey further north towards Western Europe
A river gull flies over reflection of a Gazela (Gazelle) bridge on the Sava river in Belgrade, Serbia, Friday
A man carries his daughter as they walk with other migrants and asylum seekers after crossing the Macedonian-Serbian border near the village of Miratovac on Tuesday
Migrants jump over a fence as they attempt to cross the Croatian border near the village of Berkasovo, Serbia on Monday. Thousands of migrants clamoured to enter European Union member Croatia from Serbia on Monday after a night spent in the cold and mud of no-man’s land, their passage west slowed by a Slovenian effort to impose limits on the flow to western Europe.
A child sits behind a fence as refugees and migrants wait for a train heading to Serbia near the Macedonian-Greek border on Friday
A boy makes a grimace aboard a train transporting migrants and refugees to Serbia after they crossed the Greek-Macedonian border near Gevgelija on Monday
David Ramos/Getty Images
A migrant walks the last few kilometres from Serbia to Croatia as more migrants continue to arrive by bus on Monday in Sid, Serbia
Children play near policemen standing guard as a group of newly arrived migrants wait for a train at a railway station, near the official border between Serbia and Croatia, near Eastern-Croatian town of Tovarnik, on Thursday.
A migrant protests as Hungarian riot police fires tear gas and water cannon at the border crossing with Serbia in Roszke, Hungary on Wednesday
Hungarian border police stand guard opposite refugees standing behind a fence at the Hungarian border with Serbia near the town of Horgos on Wednesday
Matthias Schrader/AP Photo
A woman walks on the railway track on her way to a temporary holding centre for migrants after crossing the borderline between Serbia and Hungary near Roszke, southern Hungary today.
Christopher Furlong/Getty Images
A young girl finds the energy to run towards waiting buses at the Hungarian border with Serbia in Roszke, Hungary. Migrants are rushing to the border due to fears and rumours that the borders will soon close.
Aris Messinis/AFP/Getty Images
Syrian refugees and migrants along a railway line as they try to cross from Serbia into Hungary near Horgos. European Union leaders called for action to defend the “dignity” of migrants ahead of fresh emergency talks, as tensions flared on the bloc’s eastern borders over the escalating crisis.
A migrant, hoping to cross into Hungary, plays with a child along a railway track outside the village of Horgos in Serbia
Migrants sleep on a bench at a park in Belgrade, Serbia on Friday. Over 10,000 migrants, including many women with babies and small children, have crossed into Serbia over the past few days and headed toward Hungary and the EU Schengen Area