The ground split open and swallowed Dathan. It buried Abiram’s followers.
The ground opened up and swallowed them along with Korah. They and their followers died when the fire consumed the 250 men. This was a warning.
You also saw what he did to Dathan and Abiram, the sons of Eliab, from the tribe of Reuben. In the middle of all the Israelites the ground opened up and swallowed them, their families, their tents, and every living creature with them.