French President Emmanuel Macron slammed Poland's Prime Minister, on Wednesday, for criticizing the French leader's ongoing talks with Russian President Vladimir Putin.

Polish Prime Minister Mateusz Morawiecki bashed Macron's hours of phone calls with Putin, whom he compared to Hitler, on Monday, remarking they had accomplished nothing.

"How many times have you negotiated with Putin and what have you achieved?" he said, addressing the French leader. 

"We do not discuss, we do not negotiate with criminals. Criminals have to be fought against."

"Nobody negotiated with Hitler. Would you negotiate with Hitler, with Stalin, with Pol Pot?"

On Wednesday evening, when asked about the remarks, Macron answered back asserting that "These statements are both baseless and scandalous," and they threaten to undermine EU unity.

Macron claimed that Poland's president belonged to a "far-right party" and was "supporting" his rival Marine Le Pen in France's presidential election this month.

"I take full responsibility for having spoken to the president of Russia, in the name of France, to avoid the war and to build a new architecture for peace in Europe several years ago," he added.

"I did it from the beginning of my term in office," he stressed adding: "I was never naive, unlike others. I was never complicit, unlike others."

Last month, polls suggested that Macron could be winning the second round of the presidential elections - this has materialized in recent polls, which suggest Macron's popularity has increased with the ongoing talks with Putin. 

The 2022 French presidential election is set for April 10 and 24.

See more: Meet the candidates for the 2022 French presidential elections