The Labrador mix was spotted in north east Pennsylvania on Saturday. A passer-by Wyatt Erb spotted the Labrador and immediately jumped into the Newshaminy Creek, in Bristol Township, and saved the dog.
He told NBC News: ‘The leash was actually hooked to a stone in the ground. It’s not something the dog could have done by itself.’
His actions saved the dog’s life.
Sergeant Thomas Gaffney of the Bristol Police Department said: ‘She would have drowned more than likely if the water got high enough.’
Detectives say the dog suffered from years of abuse and also had a tumour on one of her legs which was never treated.
Police believe it was the dog’s owner who tried to kill her by tying the pet up inside the creek. Detectives are now hunting for the owner of the dog.
The Lab has been taken to an animal shelter and will soon be available for adoption.