KYIV (Reuters) -Russia unleashed an overnight drone attack on the Ukrainian capital Kyiv that lasted into late morning and wounded at least one person, city officials said on Saturday.

Debris from downed drones struck six city districts, wounding a police officer, damaging residential buildings and starting fires, according to city military administrator Serhiy Popko.

Mayor Vitalii Klitschko had earlier reported that two people had been injured.

"Another night. Another air-raid alert. Another drone attack. The armed forces of the Russian Federation attacked Kyiv again according to their old and familiar tactics," Popko wrote on social media.

He said all the drones aimed at Kyiv had been shot down, but warned that others currently located in airspace outside the city could turn toward the capital.

Reuters correspondents reported hearing explosions in and around the city during an air-raid alert that lasted more than five hours.

Russia has carried out regular airstrikes on Ukrainian towns and cities behind the front lines of the war which began when Russia invaded its neighbour in February 2022.

Kyiv's military said on Friday that Moscow's forces had launched more than 2,000 drones at civilian and military targets across Ukraine in October alone.

Russia has denied aiming at civilians and said power facilities are legitimate targets when they are part of Ukrainian military infrastructure.

(Reporting by Dan Peleschuk; Additional reporting by Gleb Garanich and Pavel Polityuk; Editing by Angus MacSwan)