Ukrainian President said it is only a matter of time before Russia’s military assault on Ukraine expands to members of NATO unless the alliance installs a no-fly zone over his country, writes CNN.

“Last year, I made a clear warning to NATO leaders that if there were no tough preventive sanctions against Russia, it would start a war. We were right … now I repeat again -- if you do not close our sky, it is only a matter of time before Russian missiles fall on your territory. NATO territory. On the homes of citizens of NATO countries”, - Volodymyr Zelensky said in a video address posted to his Facebook page.

In addressing NATO countries, he cited the killing of American journalist Brent Renaud in Irpin, Ukraine, on Sunday.

“An American journalist was killed in the Kyiv region. Brent Renaud. His colleague was wounded. It was a deliberate attack by the Russian military. They knew what they were doing. But not everyone in the West seems to know what they are doing”, - said the President.

Zelensky also said his team is continuing diplomatic negotiations with Russia to arrange a meeting between him and Russian President Vladimir Putin.

“Representatives of our countries’ delegations speak in video format every day. Our delegation has a clear task - to do everything to ensure a meeting of the presidents, the meeting that I am sure people are waiting for”, - he said.