Austria has begun building a fence and checkpoints on its border with Italy in a bid to keep migrants out. Following the closure of the Balkan route, Vienna fears that this summer, migrants will cross the Mediterranean and come up through the Italian peninsula to Austria. But the decision has provoked an outcry in Italy. FRANCE 24's Natalia Mendoza reports from the Alpine Brenner Pass. A programme prepared by Patrick Lovett, Elom Marcel Toble and Claire Pryde.