Ukrainian President Volodymyr Zelensky blasted former Fox News host Tucker Carlson’s recent interview with Russian President Vladimir Putin in a recent interview with one of the network’s current hosts.

“I don’t have time to hear more than two hours of bull—- about us, about the world, about the United States, about our relations and this interview with a killer,” Zelensky said during an interview in Ukraine on Fox News’s “Special Report” with anchor Bret Baier.

In Carlson’s recent interview with Putin, the Russian president spouted propaganda about his country’s current war with Ukraine and went after the U.S. The former cable TV host was quickly criticized for giving Putin a platform.

Zelensky’s comments also follow the death of Russian opposition leader Alexei Navalny, whose passing President Biden has blamed on Putin.

“Reports of his death, if they’re true, and I have no reasons to believe they’re not — Russian authorities are going to tell their own story,” Biden said in remarks from the White House.

“But make no mistake: Putin is responsible for Navalny’s death. Putin is responsible. What has happened to Navalny is yet more proof of Putin’s brutality. No one should be fooled,” he continued.

The president also referred to Putin as a “crazy SOB,” using the acronym for “son of a bitch” at a fundraiser in San Francisco Wednesday when talking about climate change.

“This is the last existential threat, it is climate. We have a crazy SOB like that guy Putin, and others, and we always have to worry about nuclear conflict, but the existential threat to humanity is climate,” Biden said.

The Kremlin hit back at Biden for the “SOB” comment Thursday, saying that he was trying “to look like a Hollywood cowboy.”

“The use of such language against the head of another state by the president of the United States is unlikely to infringe on our president, President Putin,” Kremlin spokesperson Dmitry Peskov told Reuters. “But it debases those who use such vocabulary.”