The overnight attack was one of the largest on Ukraine and included strikes in the western part of the country, which is hit less often.

Ukraine said on Monday that Russia had fired dozens of drones and missiles at the country, killing seven in Kyiv.A flurry of diplomatic efforts to end the three-year war have stalled, with the last direct meeting between Kyiv and Moscow almost three weeks ago and no follow-up talks scheduled.

Russia flattened a section of an apartment block in Kyiv on Tuesday in its deadliest attack on the Ukrainian capital this year — part of a barrage of hundreds of drones and dozens of missiles that killed at least 18 people and wounded 151 others.