Russia launched a barrage of drones and ballistic missiles across broad swaths of Ukraine early Friday, killing at least three people and injuring dozens of others, days after Kyiv launched a daring raid on Moscow’s fleet of strategic bombers.

Russia's massive strike on Ukraine involved over 400 drones and 40 missiles, killing at least six and injuring 80, in one of the war’s largest attacks, President Zelensky said.

Drones are “ubiquitous, because they are quite useful, and they're demonstrating that every day in Ukraine,” one analyst told NBC News.