Austria

Before dawn, they clambered off a fleet of Hungarian buses at the Austrian border to find a warm welcome from charity workers offering beds and hot tea. Within a few more hours of rapid-fire aid, many found themselves whisked by train to the Austrian capital, Vienna, and the southern German city of Munich.

A national police statement said the Bulgarian national was arrested on Saturday evening. Police said Sunday they will seek to have him held in custody on suspicion of human trafficking.

On Saturday, a court in the central city of Kecskemet — from where prosecutors say the truck departed — placed four other suspects under preliminary arrest pending possible indictment.