Russia attacked the Ukrainian capital, Kyiv, with at least 10 drones overnight, damaging a multistory administrative tower and other buildings, Ukrainian officials said on Wednesday, as Moscow kept up the pressure on metropolitan centers far from the front lines. The officials said that Ukraine's air defenses had shot down all the drones aimed at Kyiv but that falling debris from the interceptions had caused damage. The State Emergency Service said that an administrative building had been hit, and the head of the Kyiv regional administration, Ruslan Kravchenko, said that a house, a garage and a car had caught fire. "Another mass attack of the enemy involving attack U.A.V.s," said a statement by the regional administration on the Telegram app, referring to unmanned aerial vehicles. "Groups of drones were flying toward Kyiv simultaneously from multiple directions," it added.