Read Genesis 14:10 Using Other Translations
And the vale of Siddim was full of slimepits; and the kings of Sodom and Gomorrah fled, and fell there; and they that remained fled to the mountain.
Now the Valley of Siddim was full of bitumen pits, and as the kings of Sodom and Gomorrah fled, some fell into them, and the rest fled to the hill country.
As it happened, the valley of the Dead Sea was filled with tar pits. And as the army of the kings of Sodom and Gomorrah fled, some fell into the tar pits, while the rest escaped into the mountains.