Russia attacked Ukraine's capital with ballistic missiles and drones on Saturday, killing at least one person and wounding 27, a day before talks between Ukrainian and U.S. leaders.

An intense wave of Russian drone attacks has left hundreds of thousands of households in the Kyiv region without power, Ukrainian President Volodymyr Zelensky said Tuesday, as temperatures fall well below freezing.

Russia's second Oreshnik IRBM attack was part of a huge missile and drone barrage, but its significance may have been mainly symbolic.

The Kremlin has tried for years to freeze Ukraine into submission. This winter, its attacks have been the most devastating ever.

Ukraine has fuel reserves for more than 20 days, Energy Minister Denys Shmyhal told parliament on Friday, describing the overall energy situation in the country as very difficult following a series of Russian drone and missile attacks on power infrastructure.

Russia hit Kyiv with its hypersonic Oreshnik missile, only the second time it has used the nuclear-capable weapon in the war with Ukraine. The strike is believed to be a strong message to the West including the US amid Trump's military aggression across the world.

Russia launched a large-scale attack on Ukraine’s capital on Friday using new ballistic missile that it says flies at 10 times the speed of sound and is unstoppable by air defences. The strikes coincide with a new chill in relations between Moscow and Washington and send a clear warning to Kyiv’s NATO allies.