Joshua 8:23-29

23But they captured the king of Ai alive and brought him to Joshua.

24When Israel had finished killing all the men of Ai who had chased them toward the desert (they all fell by the sword), all Israel returned to Ai and put the sword to it.

25Twelve thousand men and women died that day, including all the men of Ai.

26Joshua kept holding out his curved sword until Israel had annihilated all who lived in Ai.

27But Israel did plunder the cattle and the goods of the city, in accordance with the Lord’s orders to Joshua.

28Joshua burned Ai and made it a permanently uninhabited mound (it remains that way to this very day).

29He hung the king of Ai on a tree, leaving him exposed until evening. At sunset Joshua ordered that his corpse be taken down from the tree. They threw it down at the entrance of the city gate and erected over it a large pile of stones (it remains to this very day).