2 Kings 23:19-20

19King Josiah removed the altars on the hills in all the towns of Samaria. The kings of Israel had built those altars and that had made the Lord angry. Josiah destroyed all of them, in the same way that he destroyed the altar at Bethel.

20He punished with death all the priests who served false gods at those altars. He killed them on their own altars. He burned human bones on all the altars. After he had done that, he went back to Jerusalem.