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.

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

The latest assault included more drones in a single night than Russia used in the entire month of July last year.

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.

The Ukraine war escalates with strikes on Russian command. Will Putin's fears materialize? Examining Ukraine's defense, international sanctions, and the war's impact.