Ukraine’s President Volodymyr Zelensky has said the death of Yevgeny Prigozhin – the Russian mercenary leader whose plane crashed weeks after he led a mutiny against Moscow’s military leadership – shows what happens when people make deals with Russian leader Vladimir Putin.

As Ukraine’s counteroffensive moves into a fourth month, with only modest gains to show so far, Zelensky told CNN’s Fareed Zakaria he rejected suggestions it was time to negotiate peace with the Kremlin.

“When you want to have a compromise or a dialogue with somebody, you cannot do it with a liar,” Volodymyr Zelensky said.