VIENNA - Around 2,000 refugees have arrived at Austria's border from Hungary, and the numbers could more than double through the day, Austrian police said on Saturday."Our biggest problem is that the Hungarians - after checking back with Budapest - are refusing to let our buses enter their territory and pick up the refugees," said Hans Peter Doskozil, chief of the police in the Austrian province of Burgenland."We offered them that they can bring the refugees directly to the trains, or to the shelter (on the Austrian side), but they just stop the buses on the Hungarian side, everyone has to get off in the rain."Two special trains taking migrants from the Austrian border town of Nickelsdorf to Vienna were about to depart, he added. The highway was blocked for all traffic into Austria.