NATO scrambled fighter jets in Polish and Romanian airspace overnight as Russia carried out massive drone and missile strikes in western Ukraine, killing at least 25 people, three of them children.

The chief of Russia's general staff told President Vladimir Putin on Thursday that Russian forces had taken control of the northeastern Ukrainian city of Kupiansk, but Ukraine's military denied the city had changed hands.

President Donald Trump’s special envoy to Ukraine, Keith Kellogg, has informed the White House he’ll leave his post in January