Roman Busargin, the Governor of Saratov region, says one person was killed in Balakovo. That's preliminary. He later said the area's infrastructure was back to normal.
Russia's Defence Ministry gives a different number for the whole country, including a separate tally near Moscow and another over Rostov region. That's a separate count from Sobyanin's Moscow-only figures, not the same drones counted twice.
No Ukrainian official has said Ukraine did this. Right now it's Russian officials and Ukrainian monitoring channels describing what got hit.
That's everything we know.
Why this mattersThis is one of the biggest drone attacks on Moscow in two years. And it landed the same night Russia hit Ukraine hard.
Hours earlier, Russia fired dozens of ballistic missiles and more than 120 drones into Ukraine. One missile hit Kyiv's CHP-4 power plant. Volodymyr Zelenskyy, Ukraine's President, says that plant was the real target.
At least two people were killed and around 20 wounded in Kyiv, according to Vitali Klitschko, the city's Mayor. Al Jazeera reports at least six people killed across the whole country. More than 600,000 homes and businesses lost power.
Zelenskyy says Ukraine got no warning from its Western allies before the missiles hit.
And here's the thing. This exchange comes just days after Donald Trump, the US President, announced what he called a Russia-Ukraine energy ceasefire. He gave no details. Whatever he meant by it, it didn't stop either side bombing the other's power and industrial sites overnight.
This isn't a one-off either. Two nights before this, hundreds of drones were already heading for Moscow and the region around it. Last month, Russia says it shot down its biggest wave yet in a single night nationwide, with hundreds of those destroyed near Moscow. That was the biggest attack on the capital so far. Ukraine keeps sending these waves. And they keep getting through in some numbers.
So why does Balakovo matter? Because it shows how far these drones can now reach. Construction on that data centre began in 2021. Dmitry Chernyshenko, Russia's Deputy Prime Minister, had promised it would be the biggest in the country. It sits nearly 900 kilometres from the Ukrainian border.
Russia says most of the drones were intercepted. Nobody outside Russia can check that. And Sberbank itself hasn't given its own account of the damage.
So three things are still unclear. How much damage Balakovo actually took. How many drones got through against how many were sent. And whether Ukraine timed this as a direct answer to the strikes on Kyiv, or was already planning it anyway.
What's certain is both capitals spent the same night under fire. And neither side is saying this is close to over.
