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 Greek prime minister says Europe is not doing enough to help reception countries deal with a growing migrant crisis as he called for more assistance from the EU and for all states to pull their weight.
"Greece is a first reception country, and Europe has unfortunately not taken steps to protect reception countries from a (migration) wave which has taken on uncontrolled dimensions," Alexis Tsipras said, as he resumed his role as prime minister after yesterday's election.
"There is a need ...that Europe deal with a global, a European problem and share the responsibility among all member states," he added.
The arrival of tens of thousands of refugees and migrants to the Greek islands, particularly Lesbos and Kos, have caused tension with authorities struggling to deal with the crisis.
European Union leaders are due to discuss the crisis at an emergency summit on Wednesday.
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.