This is one of two female pit bull mixes accused of mauling a woman this morning in Fresno. Victim critical pic.twitter.com/C5aC22BnXG — Sontaya Rose (@SontayaRose) April 5, 2016

FRESNO, Calif. (KFSN) -- Fresno police aren't sure how long the woman endured the dogs attacks before someone discovered her in an alley in Central Fresno. Investigators said the victim's body is covered with deep puncture wounds and scratches making it difficult to identify her.Officers said the vicious attack was horrific. Her arm was nearly ripped off and her face not even recognizable. The chief aggressor, according to police, is a female pit bull mix that's only four to six months old. Officers said the light brown dog wouldn't let loose during an attack in an alley on Angus and McKenzie. The dogs owner was the first to investigate sounds coming from behind her house."She saw two of her dogs on top of something in the alley. She got one to get off of what it was, she didn't know it was a female at that time. She went to get the other dog that was still on top of the object and saw that the dogs were attacking a female in the alley," said Lt. Joe Gomez, Fresno Police Department.Detectives said it's unclear whether the woman is homeless or lives in the area.Officers said the dogs were in a gated yard but may have squeezed through a small opening or jumped the fence. The SPCA took the dogs, that police said will be put down. The other is a brindle colored pit bull mix who is 8 to 12 months old.The dogs owner-- from her porch-- said she feels very remorseful about what happened."It's very traumatic for both sides. So we're just asking for a little privacy right now so we can intake this matter. It's an emotional situation for every individual involved."It's unknown if the dogs have any past history of malicious behavior. So far, Fresno police said it does not appear the dogs owner is at fault."There's nothing from what the officers tell me here to indicate that there's any negligence at this point on the owners part," said Gomez.The victim was conscious when the ambulance arrived. She told emergency crews she was thirsty and in a lot of pain.She has been in surgery for more than six hours.