Singer Justin Bieber's father Jeremy allegedly threw his pet dog Karma off a second floor balcony in a fit of rage.

Jeremy is said to have launched the American Bulldog off the balcony after he bit Justin's little brother Jaxon.

The dog's trainer, Trevor Dvernichuk, told TMZ that the pup snapped at the youngster prompting his father to pick up the dog and throw it over the side of the property into a snow bank.

Jeremy then told Dvernichuk to take away the dog and not return it to the family until it had been fully trained, reports tmz.com.

Dvernichuk was originally asked to take care of the dog for a few weeks, so he could train it before Justin, 20, took responsibility for it once more.

However, according to Dvernichuk, not only did the pop-star fail to return to collect Karma, he hasn't even responded to his calls.

Jeremy, however, denied abandoning Karma and insists Dvernichuk stole the dog, while the trainer claims he simply held on to the pup to protect it after witnessing the accident.