Hungary's prime minister has said eastern European nations are forced to protect themselves from the "brutal threat" of mass migration until the EU organises a united response to the refugee crisis.
Prime Minister Viktor Orban's government has built a fence to keep out refugees on the Serbian border and is rapidly constructing a similar 3.5-metre-high steel fence on the Croatian border.
Croatian police remain seemingly powerless to stop the flow of refugees squeezing onto trains towards Hungary.
While some have managed to begin the next step of their journey, many remain trapped in no man's land between countries.
As America announced it would be taking in an extra 15,000 refugees a year - the same number that arrived in Austria in one day - many fear being struck by dropping temperatures as winter approached.
ITV News correspondent Richard Pallot reports.
International development secretary announces extra resources to help identify and prioritise the most vulnerable refugees from camps.
Thousands of refugees and migrants have been trapped in a cruel tug-of-war overnight as European nations squabble over what to do with them.
Croatians have been warning refugees and migrants who are attempting to cross the country's border to be aware of minefields in the area.