Drone debris also came down on a 25-storey block of flats and an eight-storey office building in the city's Solomianskyi district, early reports say. DTEK, the energy company, has ordered emergency power cuts in Kyiv and in Bucha just outside it.
No Russian official has said a word.
That's everything we know.
Why this mattersSo here's the thing. This is not a one-off.
This is at least the fourth day running that Russian strikes have knocked out power, water or the metro in Kyiv.
Two days ago, a Russian strike on the same grid killed four people and injured at least 19, Klitschko said. Engineers were still fixing that damage the next morning when more strikes landed.
Denys Shmyhal, Ukraine's energy minister, said after that strike that energy workers were doing everything they could to get power back on fast.
So Russia is hitting this city's power grid faster than Ukraine can repair it.
And the timing is the point. Winter is coming, and this is a campaign to wreck Ukraine's energy supply before it arrives, when losing power or water gets far more dangerous.
Kyiv is home to more than three million people. One strike like this cuts off heating, water pumps and transport for a huge number of them at once.
Now, there's a political row sitting right underneath this.
A day ago, Donald Trump announced Russia had agreed to send over 300,000 tons of diesel to the US and global markets straight away. Another 500,000 tons come in November. Up to a million tons more after that. The US Treasury has licensed the sale and import of Russian diesel fuel all the way through to April next year.
Volodymyr Zelensky, Ukraine's President, called that deal quote "an obvious weakness". He said letting Russia sell its fuel is an investment in a war that should be ended, not stretched out.
That's Ukraine's president saying the US just helped fund the same war machine now cutting off his capital's water.
Zelensky says Ukraine's own long-range strikes on Russian refineries are a direct response to Russia hitting Ukraine's power grid. He says those strikes stop only when Russia's attacks stop.
Still nothing from Moscow on today's strike. Russia has not said anything about any of this week's strikes on Kyiv, which is standard practice for it.
So the facts stand as they are. Kyiv's metro is down. Its water is cut. And nobody in Moscow has said a single word.