APTOPIX Austria Migrants(01 of10)
Open Image ModalA woman holds her smiling baby in her arms as she arrives at the Hauptbahnhof station in Salzburg, Austria, Saturday, Sept. 5, 2015 on their way with other migrants from Hungary via Vienna to Germany. (AP Photo/ Kerstin Joensson) (credit:ASSOCIATED PRESS)
Hungary Migrants(02 of10)
Open Image ModalA young girl marches with others walking in the direction of Austria in Budapest, Hungary, Saturday, Sept. 5, 2015. Several hundred migrants and refugees started a march from Budapest's Keleti train station towards Austria on Saturday. (AP Photo/Marko Drobnjakovic) (credit:ASSOCIATED PRESS)
Hungary Migrants(03 of10)
Open Image ModalHungarian police officers stop traffic at an intersection as people walk in the direction of Austria in Budapest, Hungary, Saturday, Sept. 5, 2015. Several hundred migrants and refugees started a march from Budapest's Keleti train station towards Austria on Saturday. (AP Photo/Marko Drobnjakovic) (credit:ASSOCIATED PRESS)
Hungary Migrants(04 of10)
Open Image ModalA man holds a paper reading "Walking on foot to Austria" as he and others walk in the direction of Austria in Budapest, Hungary, Saturday, Sept. 5, 2015. Several hundred migrants and refugees started a march from Budapest's Keleti train station towards Austria on Saturday. (AP Photo/Marko Drobnjakovic) (credit:ASSOCIATED PRESS)
Hungary Migrants(05 of10)
Open Image ModalPeople consult a map on a cell phone as they walk in the direction of Austria, Budapest, Hungary, Saturday, Sept. 5, 2015. Several hundred migrants and refugees started a march from Budapest's Keleti train station towards Austria on Saturday. (AP Photo/Marko Drobnjakovic) (credit:ASSOCIATED PRESS)
Hungary Migrants(06 of10)
Open Image ModalMigrants and refugees walk on foot in the direction of Austria, Budapest, Hungary, Saturday, Sept. 5, 2015. Several hundred people started a march from Budapest's Keleti train station towards Austria on Saturday. (AP Photo/Marko Drobnjakovic) (credit:ASSOCIATED PRESS)
APTOPIX Austria Hungary Migrants(07 of10)
Open Image ModalMigrants line up in front of a police bus at the Hungarian-Austrian border in Nickelsdorf, Austria, Saturday, Sept. 5, 2015, where they arrived from Budapest as Austria in the early-morning hours said it and Germany would let them in. (AP Photo/Petr David Josek) (credit:ASSOCIATED PRESS)
APTOPIX Austria Hungary Migrants(08 of10)
Open Image ModalA migrants carries a child as they arrive at the Hungarian-Austrian border in Nickelsdorf, Austria, Saturday, Sept. 5, 2015, where they came from Budapest as Austria in the early-morning hours said it and Germany would let them in. (AP Photo/Frank Augstein) (credit:ASSOCIATED PRESS)
APTOPIX Hungary Migrants(09 of10)
Open Image ModalA man and a child ride aboard a bus provided by Hungarian authorities for migrants and refugees at Keleti train station in Budapest, Hungary, Saturday, Sept. 5, 2015. Hundreds of migrants boarded buses provided by Hungary's government as Austria in the early-morning hours said it and Germany would let them in. Austrian Chancellor Werner Faymann announced the decision early Saturday after speaking with Angela Merkel, his German counterpart - not long after Hungary's surprise nighttime move to provide buses for the weary travelers from Syria, Iraq and Afghanistan. (AP Photo/Marko Drobnjakovic) (credit:ASSOCIATED PRESS)
APTOPIX Hungary Migrants(10 of10)
Open Image ModalA woman and her children sit as they have boarded a bus provided by Hungarian authorities for migrants and refugees at Keleti train station in Budapest, Hungary, Saturday, Sept. 5, 2015. Hundreds of migrants boarded buses provided by Hungary's government as Austria in the early-morning hours said it and Germany would let them in. Austrian Chancellor Werner Faymann announced the decision early Saturday after speaking with Angela Merkel, his German counterpart - not long after Hungary's surprise nighttime move to provide buses for the weary travelers from Syria, Iraq and Afghanistan. (AP Photo/Marko Drobnjakovic) (credit:ASSOCIATED PRESS)