The EU has appealed to member states to deliver on promises to deal with the refugee emergency, warning that the Union’s credibility is at stake.

Croatia’s prime minister has dismissed Hungary’s plan to build a fence between the two countries, arguing that nothing would be able to stop those seeking sanctuary in richer European countries.

After suddenly landing in the path of the biggest migration in Europe for decades, Croatia said it could no longer offer them refuge and would wave them onwards, challenging the EU to find a policy to receive them.