
Slovenia is pleading with the EU to send more police to patrol its borders as thousands more migrants enter the country on their way to western Europe.

The country's president Borut Pahor said he needed 'fast assistance' from the EU as it emerged that about 19,500 migrants have entered Slovenia since Friday.

It comes as Slovenia accused Croatia of sending thousands of refugees toward its borders 'without control' after ignoring requests to contain the surge.

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Migrants were seen making their way along a small hilltop as they continued their journey from Croatia to Slovenia on Tuesday evening

Migrants wait in the rain at the Trnovec border crossing as restrictions on movements through produced bottlenecks on Croatia's frontier

Keeping a close eye: Police watched as hundreds of migrants crossed from Croatia to Brezice in Slovenia on Tuesday evening

A large group of migrants were also pictured walking towards the Austrian border after arriving by train in a Slovenian village tonight

Continuing their journey: Hundreds of migrants headed for the Austrian border after arriving by train in Sentilj, Slovenia, this evening

Slovenian mounted police escort hundreds of migrants near Dobova after rounding them up in a muddy field near the border with Croatia

While Slovenia has said it can handle only 2,500 migrants a day, its police said that around 8,300 migrants seeking to head towards Western Europe were in reception centres in the small country, with thousands more arriving.

Police in riot gear surrounded hundreds of migrants in a muddy field near the border village of Rigonce, from where they were escorted on foot to an already overcrowded reception centre about nine miles away.

'The pressure of immigrants arriving from Croatia is intensifying,' the Slovenian government said in a statement.

Marching in numbers: Slovenia is pleading with the EU to send more police to patrol its borders as thousands more migrants enter the country on their way to western Europe. A group of migrants are pictured walking to Brezice on Tuesday

While Slovenia has said it can handle only 2,500 migrants a day, its police said that around 8,300 migrants seeking to head towards Western Europe were in reception centres in the small country, with thousands more arriving. Migrants are pictured walking near Brezice

On the march: A long line of migrants were pictured walking beside a ditch as they headed towards Brezice in Slovenia earlier today

A man covered in an emergency blanket walks through the rain with other migrants on a dirt road after crossing the Macedonian-Serbian border

Refugees have faced dismal weather conditions as they wait to cross borders in Europe. A man is pictured trying to shelter his daughter from the elements after crossing the Macedonian-Serbian border

Slovenia accused Croatia of sending thousands of migrants toward its borders 'without control' after ignoring requests to contain the surge

'They send immigrants toward Slovenia without control, deliberately dispersed.'

Croatia didn't seem ready to stem the flow.

On Tuesday morning, a train carrying more than 1,000 migrants from the town of Tovarnik and some 20 buses full of migrants from the Opatovac refugee camp were headed toward the Slovenian border.

Slovenia's parliament is expected to decide later today on a government proposal to allow the army to assist police with border control.

Slovenia said it can handle only 2,500 migrants a day, but police said around 8,300 migrants were already being held in reception centres

A woman uses a mobile device to take photos of migrants as they walk in Dobova, Slovenia. Migrants continue to stream north through the Balkans from Greece but Hungary has now sealed its border with Croatia and Slovenia imposed daily limits on migrants entering from Croatia

The migrants are escorted on foot to an already overcrowded reception centre about nine miles away from where they were picked up

Migrants make use of a break in the dismal weather conditions to cross the Austrian - Slovenian border in Sentilj, Slovenia

This girl was left with stinging eyes after Slovenian police used pepper spray on a crowd of migrants attempting to break through a cordon

Slovenian police used pepper spray to try to prevent some 200 migrants from jumping ahead of a long line of people waiting to enter Austria, but it took a barrier set up by Austrian police to stop them

The government said 8,000 migrants arrived on Monday, while only 2,000 continued toward Austria and at least 4,000 more, including many babies and young children, had entered Slovenia early Tuesday.

'Slovenia is publicly calling on member states and European institutions to become actively involved in taking on the unevenly distributed burden that Slovenia is under,' the government said.

'It is delusional to expect a country with a population of two million to stop, regulate and resolve what much bigger member states have failed to do.'

Slovenia has been confronted by the surge since Hungary closed its border with Croatia to the free flow of migrants on Saturday, forcing migrants to find new routes to Austria, Germany and other favored destinations in the European Union.

The migrants were trying to get to buses waiting in the Austrian border village of Spielfeld that were taking them to emergency shelters in Klagenfurt, 87 miles west

Tensions were running high as refugees tried to break through a cordon in a makeshift camp near the Austrian - Slovenian border in Sentilj, Slovenia

On the move: Refugees carry their children and their few belongings as they walk on the border of Serbia and Croatian between Berkasovo and Bapska in Serbia

Tensions have built along the migrant trail after Hungary shut key borders with Serbia and Croatia with razor wire

Migrants queue to board a bus to a refugee centre in Sredisce ob Dravi which is guarded by joint Slovenian Armed Forces and police

Migrants queue to board a bus to a refugee centre in Sredisce ob Dravi, Slovenia. Slovenia's parliament is expected to decide later today on a government proposal to allow the army to assist police with border control

Not a single migrant has entered Hungary from Croatia since the border was closed with a fence protected by razor wire, soldiers and police patrols.

Croatia's interior minister says his country is trying to coordinate the transfer of migrants with Slovenia.

Interior Minister Ranko Ostojic said Croatia had asked Slovenian police yesterday where they wanted to receive the migrants, but had yet to receive a reply.

Ostojic said Croatia expects Slovenia every day to take in half of the migrants arriving in Croatia.

A Slovenian police officer cleans his eyes after pepper spray was used when a group of migrants attempted to break through a cordon in a makeshift camp near the Austrian - Slovenian border

A migrant mother holds a crying child after Slovenian police used pepper spray. Thousands of people are trying to reach central and northern Europe via the Balkans

A migrant carries a child as a crowd of refugees attempts to break through a barrier on the Austria - Slovenia border earlier today

A boy looks out from a bus taking migrants to a refugee centre in Sredisce ob Dravi. Diplomatic tensions flared yesterday amid chaos at the Slovenian, Croatian and Serbian borders as the slower intake of refugees created bottlenecks

Tempers boil over: A woman reacts angirly as migrants wait to cross the Croatia-Slovenia border in Trnovec

Migrants and refugees wait to cross the Croatia-Slovenia border in Trnovec. Slovenia has been confronted by the surge since Hungary closed its border with Croatia to the free flow of migrants on Saturday

Ostokic said: "If we are receiving 10,000, then 5,000 people have to be transited to Slovenia. If the number in Croatia is 5,000, then it's 2,500, or 50 percent."

Slovenia says it cannot handle more than 2,500 per day.