Estonian Prime Minister Kaja Kallas said on Monday that it is not realistic to expect an agreement on a sixth package of sanctions against Russia today, reported Reuters. 

The EU has been struggling to agree on a sixth package that would largely target Russian oil imports amid opposition from land-locked EU countries such as Hungary, who have been pushing for pipeline-delivered crude to be exempt from any ban. 

EU leaders are currently convening at a meeting of the EU Council Summit, which is set to last until Tuesday. The hope had been that, but by the end of the summit, a deal on a Russian oil import embargo could be reached.