Buses have to wait two hours to exit Slovenia at Obrežje, while a one-hour waiting time is being reported for entering the country, show data from the Traffic Information Centre. Cars have to wait one hour to enter or exit the country.

One-hour waiting time is reported at Starod, while some congestion is also reported at border crossings Gruškovje, Jelšane, Sečovlje and Dragonja.

The Slovenian and Croatian police stopped checking all passengers in line with the decree tightening controls on the EU's external borders on Friday evening after long lines of traffic were formed on both sides of the border.

Prime Minister Miro Cerar tweeted late last night that he had discussed the issue with his Croatian counterpart on the phone. The pair agreed that the situation on the borders was intolerable and that immediate changes were needed.

Subsequently, the European Commissioner for Migration, Home Affairs and Citizenship, Dimitris Avramapoulos, temporarily suspended the implementation of the decree on the Croatian borders with Slovenia and Hungary, the Croatian police said last night.

The police are therefore checking only passengers from third countries while EU citizens are checked occasionally.

Slovenian Interior Ministry State Secretary Boštjan Šefic told POP TV last night that Slovenia would brief the Commission on the situation next week. Security measures are needed, but they need to be made more bearable, he said.

This was echoed by PM Cerar today. Slovenia will present the situation at the border and its proposals also at a working meeting on border control with Avramopulos scheduled for the beginning of next week, he said in today's statement.

Šefic said the problem was that Croatia did not yet have access to the Schengen zone information system, which was why both Slovenian and Croatian needed to check passengers. If Croatia gets access to the system by June, the checking of passengers will be quicker, he said.

The Slovenian police stopped checking all passengers because of "excessive waiting times" on Friday evening, Bojan Tomc, inspector of the Novo mesto police administration, told POP TV last night.

The long lines were also result of heavy traffic from Austria, Germany and Switzerland due to the upcoming Easter holidays.

The tighter controls on the border were introduced on Friday after a series of terrorist attacks in Europe.