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.
The US will take in 15,000 more refugees from around the world next year, increasing the US's current intake to 85,000 people, US Secretary of State John Kerry has said.
He said that number would rise to 100,000 in 2017.
Mr Kerry was speaking after a meeting with his German counterpart, Frank-Walter Steinmeier.
"In consultation with Congress, we will continue to explore ways to increase those figures while maintaining robust security," Kerry said
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.