Civilian casualties in Ukraine in July reached their highest level since the early months of Russia's full-scale invasion, as Russian forces intensified long-range missile and drone strikes on towns and cities far from the front line, the UN said in a report published Friday.

The figures are based primarily on statements from officials and occupation authorities, as well as photographs and videos published by media outlets and other channels.

Civilian deaths in Ukraine rose in July to their highest monthly level since the first months of Russia’s invasion, the U.N. said Thursday, as Moscow...