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.

Ukraine has “eliminated” two suspected Russian secret agents after a gunfight in a spy den in Kyiv. The man and woman killed were thought to be part of Russia’s FSB and behind the daylight assassination of one of Ukraine’s top spies this week.