The dog went overboard, his leash got stuck and he had to tread water until the Nassau County Sheriff's Office Marine Unit arrived.

JACKSONVILLE, Fla. — A watery ordeal has ended with a trip to the humane society for a small dog who went overboard near the Fernandina Beach Harbor Marina.

The Nassau County Sheriff's Office Marine Unit went to the rescue and calls this its "first water save of Hurricane Dorian."

Before the unit arrived the dog had to tread water, because his leash became stuck on some wood.