KYIV: Russian strikes across Ukraine overnight killed at least two people and wounded dozens more, authorities said, as a nationwide air alert was declared.

The State Emergency Service said an attack on the capital Kyiv had damaged several high-rise buildings, and shared photos of firefighters battling a blaze on an elevated floor.

“One person died and 18 others were wounded in the capital as a result of the massive attack,” the service said on Telegram.

“The fires have been contained, and emergency rescue operations are ongoing,” it said.

Ukrainian authorities declared a nationwide air alert at 6:06 am (0306 GMT).