reporter saw.
Late Friday, police used tear gas against several hundred migrants, some with children, who had sought to push through the police line.
The clash happened shortly after Slovenian Prime Minister Miro Cerar said the small country might consider creating "corridors" for refugees wanting to reach northern Europe if they continue arriving in large numbers.
Slovenian police said on Saturday that 1,287 had arrived as of midnight Friday, of which 483 were from Afghanistan, 470 from Syria and 126 from Iraq.
With no let-up in the flow of people desperate to find shelter in Europe from war and misery, new figures showed the EU received almost a quarter of a million asylum requests in the three months to June.
The International Organization for Migration (OIM) also said nearly 474,000 people had so far this year braved perilous trips across the Mediterranean to reach Europe.
Italy´s coastguard on Saturday said it was coordinating 20 rescue operations in the Mediterranean that had picked up 4,540 people.
The continent´s biggest migratory flow since the end of World War II has dug a deep rift between western and eastern EU members, with Hungary leading the hardline group.
Germany, Europe´s biggest economy, is the great magnet for the refugees, many of whom are Syrians.
On Friday, Berlin warned it could invoke EU´s majority voting system to force reluctant states to accept quotas of migrants.
Another worry is over the fate of the Schengen agreement, a pillar of the European project that allows borderless travel between member states.
In addition to fences or restrictions on parts of the border between Croatia, Hungary and Slovenia, there are identity checks that Germany, Austria and Slovakia have reimposed on parts of their borders, and Poland and The Netherlands are considering whether to follow suit.
EU interior ministers are to meet again on Tuesday, followed by an emergency summit on Wednesday.
Meanwhile, European Commissioner Johannes Hahn said on Saturday the EU was earmarking aid of "up to one billion euros" ($1.13 billion) to encourage Syrian refugees in Turkey to stay there rather than join the outpouring of people heading to Europe.
The money will "help Turkey to deal with this challenge and (give) people (a) perspective to stay in the region in order to return back into their home region, home towns, as soon as this is possible," Hahn said.
The money will be taken from funds allocated for Turkey, Hahn said in a visit to a migrant reception centre at Gevegilja, in Macedonia.
Of the more than four million Syrians who have fled their country, nearly half have sought shelter in Turkey, while more than a million are now living in Lebanon and nearly 630,000 in Jordan. The UN´s World Food Programme (WFP) has said severe underfunding has forced it to halve its food assistance to 1.3 million of the refugees.