Russian attacks across Ukraine have killed at least eight people and cut electricity to around a million customers, Ukrainian authorities said. Emergency crews were working in the Rivne region on Friday at an apartment building damaged in a drone strike.

The combination — a civilian death toll in single figures alongside a power outage counted in the hundreds of thousands — has become the characteristic shape of this phase of the war, and the second number is the one that describes the strategy.

What “a million without power” actually counts

Outage figures are usually reported as customers or connections rather than people, and a connection can be a household, a block or a business. The number of individuals affected is typically higher than the headline figure, sometimes substantially so.

It is also a figure that moves. Grid operators restore supply in stages, and a million customers cut at dawn may be a few hundred thousand by evening, with rolling disconnections continuing for days. A single-point total therefore says less about the damage than about the moment it was taken.

What makes grid damage different from other destruction is that it compounds. Losing power in October in Ukraine means losing heating in November, because district heating systems and domestic boilers both depend on electricity for pumps and ignition. It means water supply failing where pumping stations lack generators, hospitals running on fuel reserves that have to be trucked in, and mobile networks falling over once base-station batteries flatten.

Why substations rather than power stations

Energy analysts have observed through successive winters that the most effective strikes on an electricity system are rarely aimed at generation. Generating capacity is large, hardened and partly redundant. Transmission is neither.

High-voltage substations and autotransformers are the chokepoints. They are physically exposed, they take months to replace because the equipment is custom-built with long lead times, and the global supply of spares is thin. Damage a transformer and functioning power stations end up stranded from the customers who need them.

The legal position on such strikes is contested rather than settled. Electricity infrastructure is frequently dual-use: it supplies military facilities and civilian homes from the same wires. International humanitarian law does not prohibit attacking dual-use objects outright, but it requires that expected civilian harm not be excessive in relation to the concrete military advantage anticipated. Lawyers who argue these strikes are unlawful point to the scale and duration of civilian suffering and to the pattern of repeated attacks on the same civilian-serving nodes. Those who argue otherwise point to the genuine military dependence on the same grid. The assessment turns on facts about each strike that are not publicly available, which is why these cases take years and why documentation now matters later.

Rivne

The Rivne region sits in western Ukraine, several hundred kilometres from the front. That a residential building there required a deminer at the scene is a reminder that long-range drone and missile strikes have made the distinction between front line and rear largely meaningless for civilians.

It also carries a practical consequence for the grid. Western Ukraine holds the interconnections to the European network, and it is where generating capacity and repair crews have been concentrated precisely because it was considered safer. Strikes there are not peripheral to the energy campaign; they are aimed at the part of the system the rest of it depends on.

The attacks come as American envoys continue shuttling between Moscow and Kyiv in search of a settlement. Neither process appears to be constraining the other.

Sources

• Al Jazeera, 17 October 2026
• State Emergency Service of Ukraine, Rivne region, 16 October 2026