Ukraine said it struck a Russian air base on Saturday, while Russia continued to attack Ukraine with hundreds of drones overnight as part of a stepped-up bombing campaign that has dashed hopes for a breakthrough in efforts to end the more than 3-year-old war.

KYIV, Ukraine (AP) — Waves of drones and missiles targeted Kyiv overnight in the largest aerial assault since Russia’s invasion of Ukraine began more than three years ago, officials said Friday, amid a renewed Russian push to capture more of its neighbor’s land.

Ukraine and Russia exchanged a fresh wave of airstrikes Friday night, July 4, into Saturday, July 5, as Moscow hit Kyiv with its largest drone strike since the war began, and Ukraine claims to have taken out a stockpile of Russian weapons at an airbase.