Thousands trying to reach Western Europe are facing an ever increasing desperate situation as countries close their borders and are overwhelmed by the flow of migrants and refugees.

Here, a mounted policeman leads a group of migrants near Dobova, Slovenia, October 20, 2015.

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Doctors and paramedics take care of a child who was later taken to the hospital following a rescue operation when a boat with migrants sank while attempting to reach the Greek island of Lesbos from Turkey on October 28, 2015.

The Greek coast guard said it rescued 242 refugees and migrants off the eastern island of Lesbos on October 28, 2015, after the wooden boat they traveled in capsized.

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A Greek Coast Guard helicopter flies over fishing boats trying to rescue refugees and migrants, after a boat carrying more than 200 people sunk while crossing part of the Aegean sea from Turkey, near the Greek island of Lesbos, October 28, 2015.

At least three migrants drowned and the Greek coastguard rescued 242 others when their wooden boat sank north of the island of Lesbos on Wednesday, authorities said. Four other boats sank the same day leaving at least 15 people dead, mainly children, in total.

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A man holds three children wearing thermal blankets after their arrival in bad weather from Turkey on the Greek island of Lesbos , Wednesday, Oct. 28, 2015.

With winter fast approaching, the danger grows and more are taking risky journeys.

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Mohammed Hasan, an 18-month-old Syrian toddler, is seen onshore after he was rescued by a Turkish fisherman after a boat of migrants sunk a few miles off the coast of Turkey, October 21, 2015. The boy was reunited with his mother in Turkey after he was revived with CPR.

Nearly 50,000 people have made it to Greece's coast in a few short days, but dozens more have died at sea, including 14 in this incident.

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Migrants protect themselves from the rain as they make their way to Slovenia from Trnovec, Croatia, October 19, 2015.

Thousands of migrants crossed into Slovenia after Croatia closed its frontier, October 19, 2015. Hungary sealed its border with Croatia the previous week. Many refugees are now facing deteriorating conditions as winter approaches.

The Balkans faced a growing backlog of migrants, thousands building up on cold, wet borders after the closure of Hungary's southern frontier diverted them to Slovenia.

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A policeman holds the hand of a young girl as migrants are escorted through Dobova to a holding camp in Dobova, Slovenia, October 22, 2015.

Thousands of migrants marched across the border from Croatia into Slovenia as authorities intensify their efforts to attempt to cope with a human tide unseen in Europe since World War II.

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Croatian riot police officers control the access to a refugee camp as more migrants arrive from the Serbian border on September 22, 2015 in Opatovac, Croatia.

Croatia built a camp to control the flow of migrants to Hungary with a capacity of 4,000 people.

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Hundreds of migrants who arrived on the second train of the day at Hegyeshalom on the Hungarian and Austrian border, walk the four kilometres (2.5 miles) into Austria on September 22, 2015.

Thousands of migrants arrived in Austria over the weekend with more en-route from Hungary, Croatia and Slovenia. Politicians from across the European Union are holding meetings on the refugee crisis September 23, to try and solve the crisis and the dispute of how to relocate 120,000 migrants across EU states.

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Migrants and refugees queue to register at a camp after crossing the Greek-Macedonian border near Gevgelija on September 22, 2015.

EU interior ministers were set to hold emergency talks to try and bridge deep divisions over Europe's worst migrant crisis since World War II, as pressure piles on member states to reach an agreement.

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A local man surveys a huge pile of deflated dinghies, tubes and life vests left by arriving refugees and migrants on the Greek island of Lesbos on September 18, 2015.

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Migrants desperately try and board a train heading for Zagreb from Tovarnik station on September 20, 2015 in Tovarnik, Croatia.

Croatia continues to send buses and trains north to its border with Hungary, as officials have estimated that around 20,000 migrants have entered since September 16.

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The open-door policy of the Croatian government for migrants and refugees lasted just 24 hours. After an influx of an estimated 13,000 migrants and refugees in two days, the country said it could take no more, September 18, 2015.

A baby cries as migrants clamor to board a bus in Tovarnik, Croatia, September 17, 2015. Asylum seekers thwarted by a new Hungarian border fence and repelled by riot police poured into Croatia, spreading the strain.

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Migrants protest at the Tovarnik railway station, Croatia September 18, 2015. Migrants continued to stream through fields from Serbia into the European Union on Friday, undeterred by Croatia's closure of almost all road crossings after an influx of more than 11,000. Helpless to stem the flow, Croatian police rounded them up at the Tovarnik on the Croatian side of the border, where several thousand had spent the night under open skies. Some kept traveling, and reached Slovenia overnight.

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A migrant man remonstrates with security as he and other migrants try to force their way through police lines at Tovarnik station for a train to take them to Zagreb on September 17, 2015 in Tovarnik, Croatia. Migrants are crossing into Croatia from Serbia two days after Hungary sealed its border with Serbia, the majority of them want to reach Germany, amid divisions within the European Union over how to manage the ongoing crisis.

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Migrants force their way through police lines at Tovarnik station to board a train bound for Zagreb on September 17, 2015 in Tovarnik, Croatia. Migrants are diverting to Croatia from Serbia after Hungary closed its border with Serbia, with the majority of them trying to reach Germany amid divisions within the European Union over how to manage the ongoing crisis.

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Migrants wait near the train station in Tovarnik, Croatia, September 17, 2015. Amid chaotic scenes at its border with Serbia, Croatia said on Thursday it could not cope with a flood of migrants seeking a new route into the EU after Hungary kept them out by erecting a fence and using tear gas and water cannon against them.

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Policemen direct migrants during a stampede to board a bus in Tovarnik, Croatia on September 17, 2015. Croatia said it could not take in any more migrants, amid chaotic scenes of riot police trying to control thousands who have streamed into the European Union country from Serbia.

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A migrant taunts Hungarian riot police as they fire tear gas and water cannons on the Serbian side of the border, near Roszke, Hungary, September 16, 2015. The clash occurred after hundreds of migrants, stuck at the sealed border between Serbia and Hungary, protested and tried to break through.

Serbia condemned Hungary's use of water cannon and tear gas against migrants on their border, saying Hungary had "no right" to do so, the Serbian state news agency Tanjug reported.

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An injured migrant carries a child during clashes with Hungarian riot police at the border crossing with Serbia in Roszke, Hungary on September 16, 2015. Hungarian police fired tear gas and water cannons at protesting migrants demanding they be allowed to enter from Serbia on the second day of a border crackdown.

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Migrants protest as Hungarian riot police fires tear gas and water cannons at the border crossing with Serbia in Roszke, Hungary, September 16, 2015.

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Hungarian riot policemen escort a migrant woman and a child in Roszke, Hungary on September 16, 2015.

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Hungarian riot police watche from behind a fence as migrants protest on the Serbian side of the border, near Roszke, Hungary September 16, 2015.

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A migrant is hit by a jet from a water cannon used by Hungarian riot police on the Serbian side of the border, near Roszke, Hungary September 16, 2015.

Hundreds of migrants protested the border closure and tried to break through the sealed border.

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Migrants and refugees demonstrate as Turkish police block the road at Esenler Bus Terminal in Istanbul, Turkey on September 16, 2015.

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Migrants and refugees demonstrate as Turkish police block the road at Esenler Bus Terminal in Istanbul, Turkey, September 16, 2015.

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A refugee stands looks through the fence at the Serbian border with Hungary near the town of Horgos on September 15, 2015.

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Hungarian police officers stand in front of a fence on the Serbian side of the border after sealing it near the village of Horgos, Serbia, September 14, 2015, near the Hungarian migrant collection point in Roszke.

Hungarian police closed off the main crossing point for thousands of migrants and refugees entering from Serbia every day.

The number of migrants entering Hungary this year has risen above 200,000, police said September 14. Almost all of the migrants were seeking to travel onwards to western Europe, particularly Germany and Sweden.

Credit: Marko Djurica/Reuters

Police check the passports and papers of Syrian migrants at the border check point in the village of Szentgotthard, Hungary on September 14, 2015.

Two decades of frontier-free travel across Europe unravelled as countries re-established border controls in the face of an unprecedented influx of migrants, which broke the record for the most arrivals by land in a single day.

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A policeman guards migrants detained after crossing the border from Serbia near Asttohatolom, Hungary on September 15, 2015.

Hungary's right-wing government shut the main land route for migrants into the EU September 15, taking matters into its own hands to halt Europe's unprecedented influx of refugees while the bloc failed to agree a plan to distribute them.

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Migrants queue to board buses bound for Vienna from Hegyshalom holding center on the Austrian border after Hungarian authorities closed the open railway track crossing in Hegyeshalom, Hungary, September 15, 2015.

Hungary implemented new laws to cope with the influx of migrants which became enforceable on the night of September 14. Since the beginning of 2015 the number of migrants using the so-called 'Balkans route' has exploded with migrants arriving in Greece from Turkey and then traveling on through Macedonia and Serbia before entering the EU via Hungary.

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A railway wagon covered in barbed wire is placed at the Hungarian border with Serbia to stop migrants and refugees near the town of Horgos on September 15, 2015.

Hungarian police closed off the main crossing point for thousands of migrants and refugees entering from Serbia daily.

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Migrants wait on the Serbian side of the border with Hungary in Roszke, September 15, 2015. Hungarian police detained 16 people claiming to be Syrian and Afghan migrants early in the day for illegally crossing the Serbian border fence, a police spokeswoman said, as tough new laws took effect to guard the southern frontier.

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Policemen fix registration bands on the wrists of migrant children at a train station near the border with Austria in Freilassing, Germany September 15, 2015.

A total of 4,537 asylum seekers reached Germany by train September 14 despite the imposition of new controls at the border with Austria, according to the federal police. The arrivals brought the number of asylum seekers who have entered Germany by train since the start of the month to 91,823, a police spokeswoman in Potsdam said.

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A refugee swims towards the shore after a dinghy carrying Syrian and Afghan refugees deflated some 100m away before reaching the Greek island of Lesbos, September 13, 2015.

An estimated 309,000 people have arrived by sea in Greece, the International Organization for Migration (IMO) said September 11, 2015. About half of those crossing the Mediterranean are Syrians fleeing civil war, according to the United Nations refugee agency, UNHCR.

Credit: Alkis Konstantinidis/Reuters

Migrants eat at a reception center after their arrival at the main railway station in Dortmund, Germany on September 13, 2015.

Germany re-imposed border controls on September 13 after Europe's most powerful nation acknowledged it could scarcely cope with thousands of asylum seekers arriving every day.

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Migrants wait to board busses in Nickelsdorf, Austria on September 14, 2015.

Thousands of migrants walked unhindered across the border into Austria from Hungary on September 14, where the frontier was kept open despite Germany's sudden reintroduction of checks.

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Syrian refugee Asmaa wipes her tears as she waits for a train on the platform at the main railway station in Munich, September 13, 2015.

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