Turkish actress Tuba Buyukustun (3rd R), goodwill ambassador for UNICEF, speaks with Syrian refugee children as she visits a UNICEF centre at the Zaatari refugee camp, in the Jordanian city of Mafraq, near the border with Syria March 4, 2015. The Zaatari camp houses at least 70,000 Syrian refugees. Nearly four million people have fled Syria since 2011, when anti-government protests turned into a violent civil war. Jordan says it is sheltering around 1.3 million refugees. REUTERS/Muhammad Hamed (JORDAN - Tags: POLITICS CIVIL UNREST CONFLICT SOCIETY IMMIGRATION)