The proposal for a ceasefire from Russian President Vladimir Putin is an ultimatum that cannot be trusted, Ukrainian President Volodymyr Zelenskyy was quoted as saying by Reuters.

In a speech earlier in the day, Putin said Russia would end the war in Ukraine if Kyiv agreed to abandon its NATO membership ambitions and surrender all four oblasts claimed by Moscow.

Speaking on Italian TV channel SkyTG24 on the sidelines of the G7 summit, Zelenskyy said he believed Putin would not stop his military offensive even if his demands for a ceasefire were met.

"These are ultimatum messages, which are no different from messages from the past. He will not stop. This is the same as what Hitler did (...) That is why we should not trust these messages," Zelenskyy said.