A total of 4,218 migrants entered Croatia between midnight and 9pm on Sunday, bringing the number of migrants who had entered the country since mid-September to 197,000, the Ministry of the Interior said.
Currently, 4,351 migrants are staying at the Opatovac reception centre in eastern Croatia and more are expected to arrive from Serbia, the ministry said.
Meanwhile, Slovenia cancelled the reception of 300 migrants who were to have entered the country from Croatia via the Bregana/Obrezje border crossing, concluding the intake of migrants for the day, Slovenian police said on Sunday evening.
A total of 2,100 migrants entered Slovenia on Sunday and more than 2,300 were waiting at the Sentilj and Gornja Radgona reception centres to be transferred to Austria.
Slovenian Foreign Ministry official Bostjan Sefic told a press conference in the afternoon that Slovenia for now would not accept migrants from a train that was expected to arrive from Opatovac during the night, adding that Austria was taking fewer refugees passing through Slovenia than the number Croatia was sending to the Slovenian border.
Lack of coordination among the neighbouring countries might result in a large number of migrants staying in Slovenia for a longer time, which Slovenia finds unacceptable, as Austria receives only 1,500 people a day, Sefic said.
He spoke favourably of the arrangements between the Croatian and Slovenian authorities regarding the transit of migrants, but expressed fear that there might be large numbers of migrants trying to cross the Slovenian green border uncontrolled unless the influx of migrants using the Balkan route was reduced and the countries along this route took necessary steps.