Russian drone and missile strikes on Kyiv hit a Ukrainian government building on Sunday in what Ukrainian officials are calling the largest attack since the war began in 2022.

Ukrainian President Volodymyr Zelensky said Russia launched over 800 drones, nine missiles, and four ballistic missiles across Ukraine as part of the Sunday attack. A Ukrainian air force spokesperson told the Associated Press that this was the largest Russian drone offensive since Russia’s initial full-scale invasion in February 2022.