A woman struggles with a child's stroller as a group of immigrants try to pass through police blockades in Gevgelija, Macedonia September 10, 2015. Macedonia is considering building a Hungarian-style border fence to stem a rising influx of migrants from the south, Foreign Minister Nikola Poposki was quoted as saying on Thursday. REUTERS/Tomislav Georgiev

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Syrian refugees walk through the mud as the cross the border from Greece into Macedonia, near the Greek village of Idomeni, September 10, 2015. Most of the people flooding into Europe are refes fleeing violence and persecution in their home countries who have a legal right to seek asylum, the United Nations said on Tuesday. REUTERS/Yannis Behrakis 

Migrants walk along a railway track as they leave a collection point in the village of Roszke, Hungary September 9, 2015. REUTERS/Laszlo Balogh 

People walk past a Republican mural in West Belfast, September 9, 2015. Britain's secretary of state for Northern Ireland's Theresa Villiers is taking part in another round of cross-party talks at Stormont later today with the aim of resolving the crisis over a murder linked to the Irish Republican Army (IRA). REUTERS/Cathal McNaughton 

A young girl reacts moments after refugees from Syria and Irak arrived at a refugee centre in Champagne-sur-Seine, near Paris, France, September 9, 2015. France is ready to take in 24,000 refugees as part of European Union plans to welcome more than 100,000 in the next two years, the French President said on Monday, dismissing opinion polls showing public opposition to the move. REUTERS/Christian HartmannATTENTION EDITORS : FRENCH LAW REQUIRES THAT THE FACES OF MINORS ARE MASKED IN PUBLICATIONS 

Refugees from Syria and Irak recover as they arrive at a refugee centre in Champagne-sur-Seine, near Paris, France, September 9, 2015. France is ready to take in 24,000 refugees as part of European Union plans to welcome more than 100,000 in the next two years, the French President said on Monday, dismissing opinion polls showing public opposition to the move. REUTERS/Christian HartmannATTENTION EDITORS : FRENCH LAW REQUIRES THAT THE FACES OF MINORS ARE MASKED IN PUBLICATIONS 

A Hungarian police officer speaks to a family of migrants wishing to leave a collection point in the village of Roszke, Hungary, September 7, 2015. Hungary has no plans to shoot at migrants trying to cross its new southern border fence and is open to talks about European quotas for taking in refugees once the frontier is sealed off, Prime Minister Viktor Orban said. In an interview aired on Monday by Austrian broadcaster ORF, Orban reiterated his view that many migrants surging through his country from crisis zones in the Middle East, Africa and Asia were fleeing poverty, not real refugees in need of asylum. Hungary is the main entry point for migrants into Europe's borderless Schengen zone. REUTERS/Marko Djurica 

A migrant pushes a pram passed an armoured vehicle of the Macedonian army near Gevgelija, Macedonia, September 7, 2015. Several thousand migrants in Macedonia boarded trains on Sunday to travel north after spending a night in a provisional camp. Macedonia has organised trains twice a day to the north border where migrants cross into Serbia to make their way to Hungary. Since June, Macedonian authorities have said that more than 60,000 migrants have entered the country, and around 1,500 entered just in one day, mainly refugees from Syria. REUTERS/Stoyan Nenov 

Migrants carry a baby carriage over railway tracks as they approach the borders of Greece with Macedonia, near the village of Idomeni, September 6, 2015. Greece is struggling to cope with the hundreds of migrants and refugees from the war in Syria making the short crossing every day from Turkey to Greece's eastern islands, including Kos, Lesbos, Samos and Agathonisi. REUTERS/Alexandros Avramidis 

Migrants walk along a road to the Austrian border near the town of Budaors, outside Budapest, Hungary, September 5, 2015. Austria and Germany threw open their borders to thousands of exhausted migrants on Saturday, bussed to the Hungarian border by a right-wing government that had tried to stop them but was overwhelmed by the sheer numbers reaching Europe's frontiers. REUTERS/Bernadett Szabo

Migrants walk along a road to the Austrian border near the town of Budaors, outside Budapest, Hungary, September 5, 2015. Austria and Germany threw open their borders to thousands of exhausted migrants on Saturday, bussed to the Hungarian border by a right-wing government that had tried to stop them but was overwhelmed by the sheer numbers reaching Europe's frontiers. REUTERS/Bernadett Szabo

Migrants queue up as they wait to board trains at the railway station in Nickelsdorf, Austria September 5, 2015. Thousands of exhausted migrants streamed into Austria on Saturday, bussed to the border by a Hungarian government that gave up trying to hold them back as Europe's asylum system buckled under pressure from the numbers reaching its frontiers. Austrian police said 2,000 had arrived at the border, with many more likely to follow during the day. Trains were laid on to take them from the border town of Nickelsdorf to Vienna. REUTERS/Srdjan Zivulovic

Migrants march along the highway towards the border with Austria, out of Budapest, Hungary, September 4, 2015. Hundreds of migrants broke out of a Hungarian border camp on Friday and others set off on foot from Budapest as authorities scrambled to contain a migrant crisis that has brought Europe's asylum system to breaking point. REUTERS/Laszlo Balogh

A woman push a stroller in front of the 72nd Venice Film Festival logo in Venice, Italy, September 1, 2015. The Venice Film Festival will run from September 2 until September 12. REUTERS/Manuel Silvestri 

A woman pushes a stroller as other people ride on a scooter past garbage piled up along a street in Beirut, Lebanon August 26, 2015. The powerful Shi'ite party Hezbollah and its Christian allies walked out of an emergency Lebanese cabinet meeting on Tuesday in protest at a proposed solution to a garbage disposal crisis that has ignited violent protests in Beirut. Public anger that has come to a head over the trash crisis turned violent at the weekend, with scores of protesters and security forces injured. REUTERS/Mohamed Azakir

A baby carriage is left behind at the area where refugees and migrants resided, next to the borderline of Greece with Macedonia, near the village of Idomeni, Greece August 23, 2015. More than 5,000 migrants crossed into Serbia on Sunday, resuming a journey to western Europe after an overwhelmed Macedonia gave up its attempts to stem the flow of mainly Syrian refugees by force. REUTERS/Alexandros Avramidis 

A migrant pushes baby stroller as he arrives at Gevgelija train station in Macedonia, close to the border with Greece, August 14, 2015. In the past month, an estimated 30,000 refugees have passed through Macedonia, another step in their uncertain search for a better life in western Europe. REUTERS/Stoyan Nenov

A woman pushes a stroller as she passes by a wall mural depicting Havana, in Havana, February 11, 2015. U.S. Secretary of State John Kerry will travel to Cuba on August 14 to formally re-designate the U.S. Interests Section as the U.S. Embassy in Havana. Picture taken on February 11, 2015. REUTERS/Alexandre Meneghini TPX IMAGES OF THE DAY

Heather Padgett, with her mother Debi Padgett (R), takes her daughters Kinsley and Kiley for a walk outside their home in Cincinnati, Ohio July 16, 2015. Until she got clean last August, Heather was part of what the Centers for Disease Control has called a heroin epidemic - a 100 percent rise in heroin addiction among Americans between 2002 and 2013. The sharp rise in heroin addiction, coupled with the risks of newborns developing withdrawal symptoms after they are sent home, has led a group of Cincinnati hospitals to try what they say is the first program of its kind in the United States: testing all mothers, or their infants, for opiates regardless of background, not just those who seem high-risk. To match Feature USA-HEROIN/MATERNALTESTING Picture taken July 16, 2015. REUTERS/Aaron P. Bernstein 

A migrant from Aleppo, Syria holds his 30-day-old baby on an overcrowded train as they travel through Macedonia August 2, 2015. Tens of thousands of migrants, mainly from the Middle East and Africa, use the Balkans route to get into the European Union, passing from Greece to Macedonia and Serbia and then to western Europe. After walking across the border into Macedonia to the small local station of Gevgelia, migrants pile onto an overcrowded four-carriage train in sweltering heat, young infants among them, to travel about 200 km north. Their aim: to enter Serbia on foot, another step in their uncertain search for a better life. REUTERS/Ognen Teofilovski TPX IMAGES OF THE DAYPICTURE 24 OF 33 FOR WIDER IMAGE STORY "MIGRANTS: A TRAIN TOWARDS A NEW LIFE"SEARCH "TEOFILOVSKI TRAIN" FOR ALL PICTURES

A migrant woman holds her child as she waits for a train in Gevgelija train station near the Greek border with Macedonia July 30, 2015. Tens of thousands of migrants, mainly from the Middle East and Africa, use the Balkans route to get into the European Union, passing from Greece to Macedonia and Serbia and then to western Europe. After walking across the border into Macedonia to the small local station of Gevgelia, migrants pile onto an overcrowded four-carriage train in sweltering heat, young infants among them, to travel about 200 km north. Their aim: to enter Serbia on foot, another step in their uncertain search for a better life. REUTERS/Ognen Teofilovski TPX IMAGES OF THE DAYPICTURE 9 OF 33 FOR WIDER IMAGE STORY "MIGRANTS: A TRAIN TOWARDS A NEW LIFE"SEARCH "TEOFILOVSKI TRAIN" FOR ALL PICTURES

Tens of thousands of migrants, mainly from the Middle East and Africa, use the Balkans route to get into the European Union, passing from Greece to Macedonia and Serbia and then to western Europe. After walking across the border into Macedonia to the small local station of Gevgelia, migrants pile onto an overcrowded four-carriage train in sweltering heat, young infants among them, to travel about 200 km north. Their aim: to enter Serbia on foot, another step in their uncertain search for a better life. REUTERS/Ognen Teofilovski TPX IMAGES OF THE DAYSEARCH "TEOFILOVSKI TRAIN" FOR ALL PICTURES

A boy pushes a baby stroller in front of policemen standing guard ahead of a protest by the Islamic Action Front supporters in support of Palestinians and against the violence that occurred at al-Aqsa Mosque, after Friday prayers in Amman, Jordan July 31, 2015. Masked rock-throwing Palestinians and Israeli police using stun grenades clashed on Sunday at al-Aqsa mosque plaza, on the annual Jewish day of mourning for Jerusalem's two destroyed Biblical temples. REUTERS/Muhammad Hamed 

A mother takes care of her daughter while queuing in a line outside a drugstore to buy diapers in Caracas July 21, 2015. Picture taken on July 21, 2015. To match Feature VENEZUELA-MOTHERS REUTERS/Carlos Garcia Rawlins 

A woman with a baby stroller makes a phone call outside a drugstore to buy diapers in Caracas July 21, 2015. Picture taken on July 21, 2015. To match Feature VENEZUELA-MOTHERS/ REUTERS/Carlos Garcia Rawlins 

The Duke and Duchess of Cambridge walk past the crowds at the Church of St Mary Magdalene on the Sandringham Estate with their son Prince George and daughter Princess Charlotte, after her christening, on July 5th 2015. REUTERS/Mary Turner/Pool 

Britain's Prince George looks into the pram of his sister Princess Charlotte after her christening at the Church of St. Mary Magdalene in Sandringham, Britain July 5, 2015. REUTERS/Matt Dunham/Pool TPX IMAGES OF THE DAY

Princess Charlotte is seen inside a pram as she leaves the Church of St. Mary Magdalene in Sandringham, Britain after her christening July 5, 2015. REUTERS/Chris Jackson/Pool TPX IMAGES OF THE DAY

A woman bathes a girl seated in a stroller in Rio Bravo during a hot summer day at the border crossing between Mexico and the United States in Ciudad Juarez, Mexico, June 28, 2015. REUTERS/Jose Luis Gonzalez 

A man pushes his home-made baby stroller carrying his grandson at a park in Beijing April 13, 2015. REUTERS/Kim Kyung-Hoon

A boy in a stroller waits for his father in front of a booth of Audi's at the Seoul Motor Show 2015 in Goyang April 3, 2015. The Seoul Motor Show, the largest auto event in South Korea, kicked off on Friday with 32 automakers showing their latest cars and new technologies, according to local media. REUTERS/Kim Hong-Ji 

A woman pushes a baby stroller carrying dogs on a street in Sao Paulo, April 2, 2015. REUTERS/Nacho Doce TPX IMAGES OF THE DAY

A Syrian refugee boy from Idlib, who now lives in Jordan after his family fled the violence in Syria, sits in a baby walker in his family's tent at a tented settlement in Madaba city, near Amman March 13, 2015. March 15 marks the fourth anniversary of peaceful protests against Syrian President Bashar al-Assad that started of the devastating conflict. After a government crackdown, the war has expanded into a civil conflict with regional backers. The conflict has killed some 200,000 people, created more than 3.9 million refugees, mostly in Turkey, Lebanon and Jordan, and displaced 7.6 million people within Syria, U.N. figures show. Picture taken March 13, 2015. REUTERS/Muhammad Hamed (JORDAN - Tags: POLITICS CONFLICT CIVIL UNREST SOCIETY IMMIGRATION) 

People are seen through the windows of a building damaged by fighting in the city of Debaltseve, February 20, 2015.
REUTERS/Baz Ratner (UKRAINE - Tags: POLITICS CIVIL UNREST CONFLICT) 

A child looks at a lion dance performance during Chinese Lunar New Year celebrations in Sao Paulo February 19, 2015. The Chinese Lunar New Year on February 19 will welcome the Year of the Sheep (also known as the Year of the Goat or Ram). REUTERS/Nacho Doce (BRAZIL - Tags: SOCIETY) 

A man pushes a stroller near a frozen river in Donetsk, February 15, 2015. The Ukrainian military said on Sunday a ceasefire between government troops and pro-Russian separatists in east Ukraine is being observed "in general" and that rebel attacks are infrequent and not widespread
. REUTERS/Baz Ratner (UKRAINE - Tags: CIVIL UNREST POLITICS CONFLICT SOCIETY) 

A participating family stands in front of their tent in the camping area of the Campus Party event in Sao Paulo February 4, 2015. Campus Party is an annual week-long, 24-hour technology festival that gathers around 8,000 hackers, developers, gamers and computer enthusiasts from around the world. REUTERS/Paulo Whitaker (BRAZIL - Tags: SCIENCE TECHNOLOGY SOCIETY) 

A woman carrying her child walks past children begging in a market in Aleppo January 22, 2015. REUTERS/Jalal Al-Mamo (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT SOCIETY BUSINESS FOOD POVERTY) 

A man pushes a pet dog in a pram through the outer part of the Tsukiji fish market, the Jogai Shijo, in Tokyo January 4, 2015. The famous Tsukiji wholesale fish and seafood market, is scheduled to leave its fabled 80-year-old halls to move into bigger, more modern facilities next year ahead of the 2020 Tokyo Olympics. The outer part of the market, the Jogai Shijo, that caters to the public will stay in its old place, but critics wonder about its chances for survival without the world's biggest fish trading place at its doorsteps. Picture taken January 4, 2015. REUTERS/Thomas Peter (JAPAN - Tags: ANIMALS BUSINESS SOCIETY TPX IMAGES OF THE DAY) 

A family takes a stroll in the snow in downton Zagreb December 28, 2014. The streets of the Croatian capital, covered by the winter's first snow, were almost deserted on Sunday morning. REUTERS/Antonio Bronic (CROATIA - Tags: ENVIRONMENT SOCIETY) 

A woman pushes a pram with a child as heavy fog covered streets in a small town of Zaslavl, northwest of Minsk, December 10, 2014. REUTERS/Vasily Fedosenko (SOCIETY TPX IMAGES OF THE DAY ENVIRONMENT) 

Shoppers are reflected in a window as they walk though Times Square in New York November 30, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: SOCIETY) 

A woman pushes a baby carriage past an Audi Nanuk Quattro concept car during the 12th China International Automobile Exhibition in Guangzhou, Guangdong province, November 20, 2014. REUTERS/Alex Lee (CHINA - Tags: TRANSPORT BUSINESS) 

Lebanese Hezbollah supporters march during a religious procession, to mark the burning of the tents that is part of Ashura religious ceremony, in Nabatieh November 7, 2014. REUTERS/Ali Hashisho (LEBANON - Tags: POLITICS RELIGION) 

A woman pushes a pram as she walks in a Jewish settlement near Jerusalem known to Israelis as Har Homa and to Palestinians as Jabal Abu Ghneim October 27, 2014. Israeli Prime Minister Benjamin Netanyahu will expedite planning for some 1,000 settler homes in East Jerusalem, approximately 400 units in Har Homa and 600 units in Ramat Shlomo, a government official said on Monday, in a bid to placate a restive coalition ally without further aggravating a dispute with Washington. REUTERS/Ammar Awad (JERUSALEM - Tags: POLITICS CIVIL UNREST) 

A couple takes a selfie as protesters block an area outside the government headquarters in Hong Kong October 6, 2014. Pro-democracy protests in Chinese-controlled Hong Kong subsided on Monday as students and civil servants returned to school and work after more than a week of demonstrations, but activists vowed to keep up their campaign of civil disobedience. Protesters lifted a blockade of government offices in the heart of the city, which had been the focal point of their action which initially drew tens of thousands onto the streets. The civil servants were allowed to pass through protesters' barricades unimpeded. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS) 

Participants take part in a parkrun event at Bushy Park in London August 2, 2014. The thousands of Britons who take to their local green space each week for a mass five km (3.11 mile) parkrun can expect to reap health benefits well beyond losing a few pounds and lowering their blood pressure. Scientists who have studied the mass participation events, which from a small start in London 10 years ago next week have grown to attract some 70,000 runners a week worldwide, say their effect on psychological and physical health is starting to show. Photograph taken August 2, 2014. REUTERS/Neil Hall (BRITAIN - Tags: SPORT ATHLETICS) 

A woman walks with children in the Jewish settler outpost of Gevaot, near the West Bank town of Bethlehem September 10, 2014. Days after a ceasefire was reached in the war in Gaza last month, Israel announced that 400 hectares (988 acres) west of Bethlehem, in the occupied West Bank, was now "state land" - that is territory for Israel, not land that will be part of any future Palestinian state. Picture taken September 10, 2014. REUTERS/Baz Ratner (WEST BANK - Tags: POLITICS) 

A woman hides her face from the blinding snow during an early year snow fall in Calgary, Alberta September 8, 2014. The snow and unseasonably cold weather are supposed to last for two days, according to local media reports. REUTERS/Todd Korol (CANADA - Tags: ENVIRONMENT SOCIETY) 

A woman pushing a baby carriage walks past a shop selling farm products in Buenos Aires July 31, 2014. Argentina defaulted for the second time in 12 years after last-ditch talks with what it called "vulture" creditors failed, as focus turned to whether big banks and funds would request the declaration of a "credit event". REUTERS/Enrique Marcarian (ARGENTINA - Tags: BUSINESS SOCIETY POLITICS) 

A child covered with Argentina's soccer jersey lies outside Maracana stadium ahead of the 2014 World Cup match between Argentina and Bosnia Herzegovina in Rio de Janeiro June 15, 2014. In a project called "On The Sidelines" Reuters photographers share pictures showing their own quirky and creative view of the 2014 World Cup in Brazil. REUTERS/Ricardo Moraes (BRAZIL - Tags: SPORT SOCCER WORLD CUP SOCIETY) 

Kitten Kay Sera and her dog participate in the 44th annual Los Angeles Pride parade in West Hollywood, California June 8, 2014. REUTERS/Jonathan Alcorn (UNITED STATES - Tags: SOCIETY) 

A Palestinian youth and her siblings walk past an Israeli police barrier in Jerusalem's Old City June 2, 2014. REUTERS/Ammar Awad (JERUSALEM - Tags: POLITICS SOCIETY) 

A man pushes a pram with two children on the Black Sea beach after a heavy rain in Navodari May 31, 2014. REUTERS/Radu Sigheti (ROMANIA - Tags: SOCIETY ENVIRONMENT) 

An Orthodox priest baptizes a baby at a church inside the Doctor Voino-Yasenetsky Saint Luka train, which serves as a free consultative and diagnostic medical centre, at a railway station of Divnogorsk, outside Russia's Siberian city of Krasnoyarsk May 26, 2014. The train transports well-qualified medical personnel and equipment to assist about 200 patients a day and has been travelling annually from the main regional centre Krasnoyarsk to distant settlements of Krasnoyarsk and Khakassia Regions, where hospitals and clinics are scarce, for the last seven years. The train also has a carriage which operates as a mobile Orthodox church. The train was named after an outstanding Russian surgeon, an Orthodox bishop and GULAG prisoner Valentin Voino-Yasenetsky. Picture taken May 26, 2014. REUTERS/Ilya Naymushin (RUSSIA - Tags: SOCIETY HEALTH TRANSPORT RELIGION TPX IMAGES OF THE DAY) 

A man looks at his mobile phone before the procession of the "Via Crucis" brotherhood in Santiago de Compostela, northern Spain April 16, 2014. Holy Week is celebrated in many Christian traditions during the week before Easter. REUTERS/Miguel Vidal (SPAIN - Tags: SOCIETY RELIGION) 

Britain's Catherine, the Duchess of Cambridge, talks with five sets of twins and their mothers during a walkabout in Christchurch, April 14, 2014. Britain's Prince William and his wife Kate are undertaking a 19-day official visit to New Zealand and Australia with their son George. REUTERS/Ian Jones/Pool (NEW ZEALAND - Tags: ROYALS ENTERTAINMENT POLITICS) 

Five sets of twin babies sit in their prams as they wait with other members of the crowd for the arrival of Catherine, the Duchess of Cambridge, and her husband Britain's Prince William in Christchurch April 14, 2014. The Prince and his wife Kate are undertaking a 19-day official visit to New Zealand and Australia with their son George. REUTERS/Phil Noble (NEW ZEALAND - Tags: ROYALS ENTERTAINMENT POLITICS) 

Residents push prams along a damaged road leading to Alto Hospicio commune after a series of aftershocks in the northern port of Iquique April 3, 2014. A powerful 7.6-magnitude earthquake struck off northern Chile late on Wednesday but there were no reports of damage and a precautionary tsunami alert along the coast and in neighboring Peru was called off. It was the strongest of several aftershocks that followed a huge 8.2-magnitude quake blamed for six deaths in the same region on Tuesday. Chile's emergency office Onemi said there were no initial reports of casualties or serious damage from the latest quake. REUTERS/Ivan Alvarado (CHILE - Tags: DISASTER ENVIRONMENT TPX IMAGES OF THE DAY) 

Exhibition curator Anna Reynolds poses with dolls and a wicker toy pram belonging to Britain's Queen Elizabeth and her sister Princess Margaret, at Buckingham Palace in London April 2, 2014. Toys and childhood outfits belonging to the royal family will form part of an exhibition "Royal Childhood", during the summer opening of Buckingham Palace July 26 - September 28. REUTERS/Luke MacGregor (BRITAIN - Tags: ROYALS ENTERTAINMENT SOCIETY)