Serbia has responded angrily to Hungary’s plan to build a 175 kilometre border fence between the countries. Details of the four-metre high barrier were released on Wednesday. Budapest says it can wait no longer for an EU solution to immigration management. ‘I believe the last time a wall like this was built, it was 1961,’ said Serbian prime minister Aleksander Vucic. Speaking directly to his Hungarian counterpart, he added, ‘That was a long time ago, amid problems and for reasons I well understand, but  this has nothing to do with us. Building a barrier like this cannot and will not happen.’ There is currently a strong flow of migration towards Western Europe from the east. There has been a sharp rise in the number of migrants and asylum-seekers entering Hungary in 2015. Figures suggest Kosovan nationals are by far the largest group of refugees using Serbia as a staging post on their journey.