Ukrainian forces used sea drones to attack two Russian oil ships in the Black Sea. They did this over the weekend. Ukraine wanted to stop Russia from making money from oil, which pays for its war.
Russia then attacked Ukraine with many missiles and drones. They hit energy buildings and homes. At least three people died. Hundreds of thousands of people lost electricity.
The sea drones hit the ships near Turkey. The ships were carrying oil. Videos showed the drones exploding. The ships caught fire, but no sailors were hurt.
At the same time, Russia fired many missiles at Ukraine, especially near the capital, Kyiv. Ukrainian defenses stopped most of them, but some got through. A 13-year-old child was among the injured. Workers are trying to fix the power problems.
These attacks show that the war is changing. Both sides are now attacking important economic targets.