Russia launched an intense missile and drone barrage at the Ukrainian capital Kyiv in the early hours of Friday, killing four people, Ukrainian President Volodymyr Zelenskiy said, as powerful explosions reverberated across the country.

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

The barrage included 407 drones and 44 ballistic and cruise missiles, Ukrainian air force spokesperson Yurii Ihnat said.