A Russian attack overnight, mostly targeting the capital Kyiv, killed four people and damaged buildings across the city, Ukrainian authorities said Friday.

Russia, which launched a full-scale invasion of Ukraine in 2022, has in recent months intensified its attacks on infrastructure, particularly targeting Ukrainian energy facilities and rail systems, as well as residential areas.

“This was a deliberately calculated attack aimed at causing maximum harm to people and civilian infrastructure,” President Volodymyr Zelensky said.

The attack killed four, Zelensky said, and wounded dozens including a pregnant woman.

Zelensky added that Russia had launched around 430 drones and 18 missiles in the attack.