Numbers 16:1, 31-33

Now Korah the son of Izhar, the son of Kohath, the son of Levi, with Dathan and Abiram the sons of Eliab, and On the son of Peleth, descendants of Reuben, took action

As soon as Moses finished speaking all these words, the ground under them split open; and the earth opened its mouth and swallowed them and their households, and all the men who supported Korah, with all their possessions. [Num 26:10, 11] So they and all that belonged to them went down alive to Sheol; and the earth closed over them, and they perished from among the assembly.