
Poland's climate minister has called for "immediate sanctions" on Russian oil and gas.
Anna Moscow was speaking as she arrived for an emergency meeting of EU energy ministers in Brussels.
The agenda for today has focused mainly on reserves and gas supplies, following Gazprom's decision to cut off supply to Poland and Bulgaria.
But speaking in English, Moscow said energy sanctions were a "necessary" and "urgent" step.
"We will support full sanctions for all Russian fossil fuels. We already have coal. Now is the time for oil and the second step is for gas. The best option is to take it all together."
The European Commission has held talks with member states on a possible oil embargo.
However, Germany's Economy Minister Robert Habeck acknowledged earlier that not all member states were ready to adopt such a plan.
Diplomatic sources have told the BBC that compromises are being looked at, especially for countries like Hungary and Slovakia.
Poland has generally taken a tough stance on sanctions against Russia.