As Russian forces press forward with an attempt to capture the town of Avdiivka in eastern Ukraine, The Associated Press obtained aerial footage that gives an indication of their staggering losses. A Ukrainian military drone unit near Stepove, a village just north of Avdiivka, where some of the most intense battles have taken place, shot the video this month.

It’s an apocalyptic scene: In two separate clips, the bodies of about 150 soldiers—most wearing Russian uniforms—lie scattered along tree lines where they sought cover. The village itself has been reduced to rubble. Rows of trees that used to separate farm fields are burned and disfigured. The fields are pocked by artillery shells and grenades dropped from drones. The drone unit said it’s possible that some of the dead were Ukrainians.