Fresh Russian Strikes Leave Parts of Ukraine Without Power

KYIV, Ukraine—Russia launched one of its most destructive attacks on Ukraine’s critical infrastructure Saturday, using a fresh wave of cruise missile attacks to escalate its campaign to leave the country without power as winter approaches.

Energy-grid operator Ukrenergo said Saturday that more than 10 Ukrainian regions had power outages after an attack that the operator says might have caused more severe damage than a barrage last week that was the largest since Russia’s invasion in February.