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.

Russia launched its largest drone and missile bombardment of Ukraine overnight into Wednesday, according to Ukrainian President Volodymyr Zelenskyy.

Ukraine's military said it eliminated hundreds of Russian drones overnight after Moscow launched a massive aerial attack targeting the northwestern city of Lutsk.

Between January and June, the number of Russian drone and missile attacks exceeded 23,000, a roughly 605% increase compared to the same period last year.

Ukraine’s Security Service said Sunday they had killed Russian special service agents suspected of gunning down a fellow officer in Kyiv earlier this week, saying it believed Russia’s Federal Security Service was responsible.