Genesis 13:11

13:11 Lot chose for himself the whole region of the Jordan and traveled toward the east.

So the relatives separated from each other.

Genesis 19:25

19:25 So he overthrew those cities and all that region, including all the inhabitants of the cities and the vegetation that grew from the ground.

Genesis 19:28

19:28 He looked out toward Sodom and Gomorrah and all the land of that region. As he did so, he saw the smoke rising up from the land like smoke from a furnace.