Hungary disarmed the 40 Croatian police officers and sent them back to their homeland

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Some 17,000 refugees have streamed into Croatia since Wednesday after Hungary blocked access to its border to Serbia.

On Friday night the Croatian Prime Minister Zoran Milanovic told a news conference in the capital Zagreb: "We cannot register and accomodate these people any longer.

"They will get food, water and medical help, and then they can move on. The European Union must know that Croatia will not become a migrant 'hotspot'. We have hearts, but we also have heads."

It comes as Hungary has seized and confiscated a Croatian train attempting to transport 1,000 refugees into the country, raising tensions between both EU countries.

However Hungary admitted on Saturday night it will keep letting migrants in from Croatia - because it "seems to be impractical" to stop them.

Hungary accused Croatia of committing a "major violation of international law" by trying to transport the 1,000 migrants across its border.

Politicians in Budapest described the train's unannounced arrival as a "major, major incident" and claims they disarmed 40 police officers accompanying the migrants before sending them back to Croatia.

However Croatia fervently denied any weapons had been taken from the officers.

Hungarian authorities confirmed they have arrested the train driver after claiming the transportation of the migrants was breaching EU law.

Hungarian government spokesman Zoltan Kovacs said it showed "the Croatian system for handling migrants and refugees has collapsed, basically in one day".

He said: "What we see today is a complete failure of the Croatian state to handle migration issues."

Mr Kovacs added that Croatia - which joined the EU in 2013 - is not only letting Hungary down by allowing thousands to stream through, but is letting down the entire EU.