Border police in Serbia say they are facing growing numbers of illegal migrants attempting to enter the country, mainly over its southern border with Macedonia. In the first six months of 2013, police registered illegal entry attempts by more than 5,000 migrants, mostly from Africa and the Middle East. Many are following the trans-Asian corridor, which leads from the Mideast through Turkey, Greece, Macedonia, and Serbia before reaching Hungary and the Schengen free-travel zone. In the past year, the war in Syria has resulted in a massive influx of Syrians attempting to cross the Western Balkans in search of asylum in Europe or beyond. (Photos by Marko Djurica of Reuters.