Russia carried out its largest air strike on Ukraine's energy system since its invasion in February 2022, damaging power units at a dam and causing blackouts for more than a million people
Seventy-one civilians, including 13 children, were killed by rebel shelling into government-held areas of the city during the same period, the British-based monitoring group said.
Eight more civilians, including three children, were killed by government shelling into areas not under its control in the city, the Observatory said.