'Safe days in Russian skies are over,' warns Zelensky

Ukrainian President Volodymyr Zelensky on Tuesday warned airlines, insurance firms and passengers that Russian airspace would be "completely unsafe" and filled with Ukrainian drones for the duration of the war. His address came after a night of relentless Russian bombardment in Ukraine, which killed at least a dozen people. Read our liveblog to see how all the day's events unfolded.