"These are frozen Russian assets held in Europe, belonging to Russians who are destroying Ukraine and killing people there every day... the idea of releasing these assets is completely out of the question," said Finnish Prime Minister Petteri Orpo.

"All of us in Europe want this war to end. And for that to happen, strong signals are needed — more real pressure on Russia and more defense support for Ukraine," Zelensky wrote on social media upon arrival.

"Every step now to help the Russians increase their financing of the war is a bad sign. We very much stick to Volodymyr Zelensky's view on this," Swedish Prime Minister Ulf Kristersson.