KYIV: Russia struck apartment blocks across the Ukrainian capital of Kyiv overnight, killing at least four people in what President Volodymyr Zelenskyy slammed as a "heinous attack" that deliberately targeted civilians.

The International Energy Agency estimates that repeated drone strikes have cut Russia’s refining capacity by about 500,000 barrels a day.

Their targets are strategic: oil refineries, fuel depots, and military logistics hubs. Since the summer, Ukraine’s long-range drone campaign has ramped up dramatically, pounding energy infrastructure across Russia and stretching Moscow’s air defenses thin.

Ukrainian drones attacked oil infrastructure at Russia’s giant Black Sea port of Novorossiysk overnight, as Moscow’s forces launched a massive air strike on Kyiv that killed three and damaged several residential buildings.

Russia, meantime, attacked the city of Kamianske in Ukraine’s eastern Dnipropetrovsk region with drones overnight, injuring eight people, the head of the regional military administration, Vladyslav Haivanenko, said on his official Telegram channel.

Ukrainian strikes disrupted power and heating to two major Russian cities near the Ukrainian border, local Russian officials reported Sunday. The report comes as Russia and Ukraine have traded almost daily assaults on each other’s energy infrastructure and US-led diplomatic efforts to stop the nearly four-year war have