In photos: Russia launches major military assault on Ukraine cities
Kyiv and other cities across Ukraine were facing a major military assault by Russian forces overnight, in what Ukrainian Foreign Minister Dmytro Kuleba described as "a full-scale invasion" that's killed dozens of people.
The big picture: Shortly after Russian President Vladimir Putin announced a "special military operation" in Ukraine, Kuleba tweeted: "Peaceful Ukrainian cities are under strikes. This is a war of aggression." President Biden said the U.S. would impose further "severe sanctions" on Russia in response.
Go deeper: The latest on the Russia-Ukraine crisis