Exodus 14:26-28
Then the LORD said to Moses, "Stretch out your hand over the sea so that the waters may flow back over the Egyptians and their chariots and horsemen."
Moses stretched out his hand over the sea, and at daybreak the sea went back to its place. The Egyptians were fleeing toward it, and the LORD swept them into the sea.
The water flowed back and covered the chariots and horsemen - the entire army of Pharaoh that had followed the Israelites into the sea. Not one of them survived.