Medvedev, now deputy chairman of Russia's Security Council, made his comments after the European Union agreed an 18th package of sanctions against Russia over its war in Ukraine, including measures aimed at dealing further blows to the Russian oil and energy industry.

The European Union agreed to impose its toughest sanctions on Russia since its large-scale invasion of Ukraine, blocking attempts to revive the Nord Stream gas pipelines, lowering a price cap for Russian oil sales and hitting banks from third countries in a move that could exacerbate tensions with China.

BRUSSELS -- The European Union approved on Friday a new raft of sanctions against Russia over its war on Ukraine, including a lower oil price cap, a ban on transactions with Nord Stream gas pipelines, and the targeting of more shadow fleet ships, the EU foreign policy chief said.