There is not enough support in the EU to impose an embargo or punitive tariffs on Russian oil and gas imports, Josep Borrell, head of EU diplomacy, told the German newspaper Die Welt.

"At the moment, we in the EU do not have a unified position on this question," Borrell told the newspaper.

Russia is Europe's largest oil supplier, accounting for just over a quarter of EU oil imports in 2020, according to Eurostat's statistics office.

According to Borrell, this topic will be discussed at the next EU summit, which should be held at the end of next month, and until then he does not expect any decision on this issue. "A final proposal for an embargo on oil and gas is not yet on the table," he said.

The European Commission is likely to submit proposals for a sixth round of sanctions to member states this week, Die Welt writes without citing sources.

All EU states are working to reduce their dependence on Russian oil and gas, Borrell said, adding that he believes the bloc will eventually be able to reduce its dependence. "At some point it will happen and then Russia will feel painfully that the revenues from the oil and gas business are being lost," he added.