"We regret this and state that such actions of these countries lead to the escalation of tension around this conflict, prolong it and make it more painful and torturous for Ukraine," said Mr Peskov.
Chancellor Scholz agreed only recently to allow German Leopard tanks and has warned against getting involved in a "public bidding war" of weapons systems for Ukraine.
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Mr Zelensky had earlier addressed a joint session of the UK Parliament in Westminster Hall, underlining his plea for fighter jets: "Freedom will win - we know Russia will lose." ssgame66