Photo taken on April 28, 2017 shows the second line (Front) of a double-row fence alongside the Hungarian-Serbian border near Roszke, Hungary. The second line of a double-row fence alongside the Hungarian-Serbian border has been completed Friday, along all of its 155-km length, said Karoly Kontrat, Hungary's State Secretary of the Ministry of Interior. (Xinhua/Attila Volgyi)
