Deuteronomy 3:4-6

Then we captured all of Og’s cities, all sixty of them, and took the whole area of Argob, Og’s kingdom in Bashan. All these were strong cities, with high walls and gates with bars. And there were also many small towns with no walls. We completely destroyed them, just like the cities of Sihon king of Heshbon. We killed all the men, women, and children