BULLSKIN TOWNSHIP, Pa. -- A cruel collar forced a dog to undergo surgery. The mixed breed border collie was found wearing a collar full of fishhooks; and one of the hooks created a hole in the dog's neck.

Humane officers at the SPCA in North Union told Channel 11 this was an unusual case of animal cruelty and they have no idea who is responsible or why someone would do something so terrible.

The dog is recovering from surgery to remove a fish hook from his neck -- one of 15 that someone had attached to the inside of his collar.

SPCA Humane Officer Elizabeth Davidson said a resident found the dog wandering along Englishman Hill Road in Bullskin Township.

“When we found the collar it was extremely tight on the dog,” Davidson said.

No one knows for sure how just how long the dog, which rescuers named Hooks, had been walking around with the collar full of fish hooks. But humane officers want to get to the bottom of this and soon.

“Very sad story, but if anyone has information on owner of dog or knows how dog may have ended up in that condition,” Davidson said to let animal officials know.

Hooks is on antibiotics to prevent an infection.

Humane officers said that if the dog had not gotten treatment when he did, he probably would have died within a few days.