Deuteronomy 2:32-35

Then Sihon and all his people came out against us to fight at Jahaz. And the LORD our God delivered him over to us; so we defeated him, his sons, and all his people. We took all his cities at that time, and we utterly destroyed the men, women, and little ones of every city; we left none remaining. We took only the livestock as plunder for ourselves, with the spoil of the cities which we took.