Loud explosions rocked Ukraine's capital Kyiv early on Monday as Russia launched a barrage of missiles, sparking fires and damaging homes and infrastructure, officials said.
Residents across the city were awoken by a quick succession of bangs and the sound of air defence missiles blasting off skyward to intercept targets.
The air force said it had destroyed 22 out of 35 missiles and 20 of 23 attack drones. It listed several types of cruise and ballistic missiles used by Russia.
Air raid alerts sounded across Ukraine for nearly two hours before the air force declared the skies clear. Neighbouring NATO member Poland activated Polish and allied aircraft to keep its airspace safe during the attacks.
The broad bombardment, a week after Russia unleashed its largest air attack on Ukraine since full-scale war began early in 2022, coincided with the return to school for many children.
A boiler house at a Kyiv water plant was partially damaged, as was the entrance to a metro station doubling as a bomb shelter in Svyatoshynksyi district, Kyiv Mayor Vitali Klitschko said on Telegram, although the station was still operating.
The district is home to a cluster of universities and schools.
The attack injured three people, city military authorities said, adding that two of those were taken to hospital.