ROSZKE, Hungary/VIENNA (Reuters) - Two decades of frontier-free travel across Europe unravelled on Monday as countries re-established border controls in the face of an unprecedented influx of migrants, which broke the record for the most arrivals by land in a single day.
Germany's surprise decision to restore border controls on Sunday had a swift domino effect, prompting neighbours to impose checks at their own frontiers as thousands of refugees pressed north and west across the continent while Hungary sealed the main informal border crossing point into the European Union.