Hungarian state media confirmed that some migrants and refugees tried to cross into Hungary via Croatia. Police apparently detained dozens of migrants near the village of Illocska, opposite the Croatian town of Beli Manastir.
The Western Balkans has become increasingly popular after the introduction of visa-free travel within the EU, writes Phoebe Weston.
2014 was marked by an unprecedented number of Kosovans crossing the Serbian-Hungarian border illegally. Unlike other Western Balkan countries- Albania, Bosnia and Herzegovina, Montenegro, Serbia and former Yugoslav Republic of Macedonia- Kosovo nationals are not allowed visa free travel in the EU.
The latest figure for asylum seekers entering Croatia in just 48 hours is more than 8,900 after Hungary sealed its border with Serbia.
Budapest ordered the creation of a fence on its border with Serbia which meant thousands of refugees and migrants had to find a new route to go westwards within Europe.
Croatia said earlier today it expects more than 20,000 to arrive in the country, according to Hina, state news agency.
"We expect a peak within the next two weeks ... over 20,000 migrants," Sinisa Varga, health minister, said.
Hungary's treatment of refugees and migrants appears to be shaped by "xenophobic and anti-Muslim views", Zeid Ra'ad Al Hussein, UN rights chief.
"High Commissioner Zeid deplored the xenophobic and anti-Muslim views that appear to lie at the heart of current Hungarian government policy," a statement from his office said.
Frederic Ischebeck-Baum, fellow of the Cambridge Security Initiative (CSI), has written for the Telegraph about the long-term effects of this crisis and the need for a clear.
The current migrant situation is not “only a German problem“ but will have long-term effects on the entire European sphere and beyond. Ten years ago nobody could really predict today’s mass of people arriving from Central Asia, the Middle East and Africa, there most naturally could only be sophisticated guesses – and there were.
Clearly, however, regional instability and conflict are the reasons, and as long as they cannot be solved through diplomatic or military efforts little will change.
What matters today is that Europe in its political and economic entirety needs to find a solution. Whatever the European dream, the situation is already putting the notion of unrestricted humanitarian efforts to the test.
Nobody wishes a head-count because it would strongly contradict the European idea. As we have seen in the recent past, however, things can easily escalate which may lead to straightforward counter-measures resulting in a very sobering and complex moral dilemma.
It is an utterly discomforting thought that after all Europe could be turning into a fortress with barbed wire and armed patrols along its borders. Ironically, however, that is necessary to uphold law and order – which also includes protection from potential terrorists slipping into Europe by hijacking the situation. But there is hope. Europe can tackle this crisis. In order to succeed, however, it has to realise and be aware what it ultimately stands for.
Phoebe Weston on the Telegraph's foreign desk has been reading reports from Frontex from last month which show that the Hungarian-Serbian border was one of the busiest for illegal crossings.
Of course many of you will remember that this fell to 367 on Tuesday after a record high of 9,380 because of new anti-migration laws that made crossing the border illegally punishable by up to three years in prison.
But this map from last month shows just how many passed through Hungary (more than 37,000) and how low the number was for Croatia, which proves a stark difference to the more than 7,000 figure crossing in the last 24 hours.