Dog the Bounty Hunter vows to track down MMA fighter

The reality TV star known as Dog the Bounty Hunter has vowed to track down MMA fighter War Machine, who is wanted over the horrific bashing attack on his porn star girlfriend Christy Mack.

A member of Ms Mack's family has reportedly reached out to Dog, whose real name is Duane Chapman, through a mutual friend in the hope he will be able to find Jon Koppenhaver aka War Machine.

Mr Chapman has already made contact with Koppenhaver and told him he has 24 hours to hand himself in to police or face his wrath, according to TMZ.

Ms Mack suffered 18 broken bones in the attack, including around her eyes; her nose was broken in two places and several of her teeth were either broken or knocked out.

She has a fractured rib and ruptured liver as well as several knife lesions to her hands and face.

Koppenhaver has denied any role in the attack claiming he went to Ms Mack's place with a plan to surprise her by asking her hand in marriage.