Russia launched a new barrage of drones and missiles at the Ukrainian capital Kyiv on Tuesday, killing at least seven people, wounding 20, and disrupting electricity and heating systems, officials said.

President Volodymyr Zelenskyy said Russian forces launched more than 460 drones and 22 missiles. It was the second major Russian strike on Kyiv this month.

"The primary targets were the energy sector and everything that keeps normal life going," Zelenskyy said in a post on the Telegram app.

During the night, the Air Force announced a missile threat across the entire country after MiG-31 bombers were recorded taking off from Russian airfields.

Hours later, as emergency crews were still putting out fires and searching for victims of the overnight attack.

Authorities warned of a ballistic missile threat in Kyiv and said that air defences were operating in the city.

In the Pecherskyi district, several multistory residential buildings were damaged and caught fire, Kyiv Mayor Vitali Klitschko said. 

One of the targets was a 22-story apartment building, which sustained damage to multiple floors.

A 9-story residential building in the Dniprovskyi district also caught fire, leading to injuries and emergency rescue operations.

Two people were killed, including an 86-year-old woman. The fire on site has been localised and rescue workers are still searching for more victims who may be trapped in the building, according to Ukraine's State Emergency Service.

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