Copyright: EPA

European Commission President Ursula von der Leyen says the EU is "not there yet" with regards to an agreement on a sixth package of sanctions, including a potential ban on Russian oil imports.

"It's never been easy. It's the same now with the sixth package," she told reporters as she arrived ahead of a summit of the 27 EU leaders.

"It is very important to have fairness for all, we haven't found a solution for that yet.

"My expectations are low that it will be solved in the next 48 hours. But I'm confident that thereafter there will be a possibility," she said.

The EU requires the approval of all member states to introduce the sanctions, despite announcing them nearly a month ago.

As we've been reporting, Hungary, which relies heavily on Russian oil, is the main opponent of a ban in imports.