Russian drone attacks killed a 53-year-old Ukrainian man in Ukraine’s Sumy region and left parts of the city of Sumy without power, the Kyiv Independent reported, citing local authorities.

Ukraine and Russia have escalated their shadow war of espionage, sabotage, and assassinations, with both countries claiming a growing list of captured agents, intercepted plots, and cross-border attacks.

In addition to the back-to-back, mammoth overnight strikes, other Russian attacks killed at least 21 civilians across Ukraine on July 7-10. In eastern Donetsk oblast, or region, Russian artillery shelling and drone attacks resulted in 15 civilians deaths,