Ukrainian President Volodymyr Zelensky on Sunday said he is ready for negotiations with Russian President Vladimir Putin but warned that if they fail, it would prompt third World War.

While speaking to CNN’s Fareed Zakaria, he said, “I’m ready for negotiations with him. I was ready for the last two years. And I think that without negotiations we cannot end this war,”

“I think that we have to use any format, any chance in order to have a possibility of negotiating, possibility of talking to Putin. But if these attempts fail, that would mean that this is a third World War,” he added.

Zalensky’s statement was made public after Russia’s invasion of Ukraine nears its fourth week, urging more negotiations in recent days.

The statement which was released in a video message posted Saturday, had the president, making comments, but specifically calling for talks “without delay,” warning that otherwise Russia’s losses would be “huge.”

“We have always insisted on negotiations. We have always offered dialogue, offered solutions for peace,” he said. “And I want everyone to hear me now, especially in Moscow. It’s time to meet. Time to talk. It is time to restore territorial integrity and justice for Ukraine.”

In clear terms, Zelensky had previously stated his priorities: “The end of the war, security guarantees, sovereignty, restoration of territorial integrity, real guarantees for our country, real protection for our country.”