Touching on Ukrainian anxieties that a direct meeting between Mr. Trump and Putin could marginalize Kyiv and European interests, Zelenskyy said: "Any decisions that are without Ukraine are at the same time decisions against peace. They will not bring anything. These are dead decisions. They will never work."

Donald Trump's meeting with Vladimir Putin in Alaska to discuss the Ukraine war is one of the biggest gambits of his second term.

European leaders said negotiations could only take place in the context of a ceasefire or reduction of hostilities.