The UN refugee agency urges Croatia to keep its borders open to migrants, as Slovenia orders army to help maintain order, after Hungary seals its borders.\r<br>\r<br>Now Croatian riot police are sent to deal with migrants after 9000 arrive in the country, as Hungary faces condemnation for using tear gas to disperse crowds at .\r<br>\r<br>Hundreds of refugees arrived by train to the Croatian town of Cakovec on Saturday, before coaches transported them to the Slovenian border. Video ID: .\r<br>\r<br>Hungary will close its border with Slovenia after barring its three major crossing points on its Croatian border, ending the possibility for refugees to use these .
