HEGYESHALOM, HUNGARY - SEPTEMBER 23: Hundreds of migrants who arrived by train at Hegyeshalom on the Hungarian and Austrian border walk the four kilometres into Austria on September 23, 2015 in Hegyeshalom, Hungary. Thousands of migrants have arrived in Austria with more en-route from Hungary, Croatia and Slovenia. EU leaders are attending an extraordinary summit on today to try and solve the crisis. (Photo by Christopher Furlong/Getty Images)
