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
An Indian migrant worker stack bricks on his head at a brick factory in Lalitpur, Nepal on Monday
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 migrant carries her child after crossing the border from Greece into Macedonia, near Gevgelija, Macedonia on Friday
A migrant child stands on rail tracks while waiting to cross the border from Greece into Macedonia, near Gevgelija, Macedonia on Wednesday
A man claiming to be from Iran, with his mouth sewn shut, takes part in a demonstration with fellow migrants and refugees as they wait to cross the Greek-Macedonian border near Idomeni
Stranded Iranian migrant Hamid, 34, an electrical engineer from the Iranian town of Sanandij sits on rail tucks in front of Macedonian riot police guarding the borderline between Greece and Macedonia near the Greek village of Idomeni on Monday
Refugees and migrants arrive on the Greek Lesbos island after crossing the Aegean Sea from Turkey
A migrant waits for transport to Slovenia after he registered at a new winter refugee camp in Slavonski Brod, Croatia today.
A refugee prepares to hand over a toddler to a volunteer lifeguard as a half-sunken catamaran carrying around 150 refugees, most of them Syrians, arrives after crossing part of the Aegean sea from Turkey on the Greek island of Lesbos.
A refugee sleeps outside an abandoned building at the port of Mytilini, Lesbos island , Greece on Tuesday
A refugee is helped as she climbs a hill towards the main road after arriving on a dinghy from the Turkish coast to the northeastern Greek island of Lesbos on Friday
An Afghan girl sheds a tear upon her arrival with other refugees and migrants to the Greek island of Lesbos after crossing the Aegean sea from Turkey on Tuesday
Refugees and migrants arrive on the shore of the Greek island of Lesbos after crossing the Aegean Sea from Turkey on Monday
A child sits behind a fence as refugees and migrants wait for a train heading to Serbia near the Macedonian-Greek border on Friday
Migrant children gesture in a train heading to the Croatian-Hungarian border, at the train station of the east-Croatian town Tovarnik.
A migrant protests as Hungarian riot police fires tear gas and water cannon at the border crossing with Serbia in Roszke, Hungary on Wednesday
Matt Cardy/Getty Images
Migrants protest outside a train that they are refusing to leave for fear of being taken to a refugee camp from the train which has been held at Bicske station since yesterday in Bicske, near Budapest, Hungary. According to the Hungarian authorities a record number of migrants from many parts of the Middle East, Africa and Asia are crossing the border from Serbia. 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 travelling on through Macedonia and Serbia before entering the EU via Hungary. The massive increase, said to be the largest migration of people since World War II, led Hungarian Prime Minister Victor Orban to order Hungary’s army to build a steel and barbed wire security barrier along its entire border with Serbia, after more than 100,000 asylum seekers from a variety of countries and war zones entered the country so far this year.
A young child waits in line at a migrant reception centre in Brussels on Tuesday. Hundreds of migrants are arriving every day in Belgium, some making perilous journeys through Europe
A Syrian migrant carries his children as he walks along a railway track to cross the Serbian border with Hungary near the village of Horgos on Thursday