Authorities released the 9-1-1 call from the incident on Wednesday.
Caller: "My pitbull is attacking my kids."
It's a mother's terrified telephone call for help. 9-1-1 operators listened in as the mother's 8-year-old son is being attacked by their own dog. His arm was nearly bit off according to a family friend. Paramedics flew him to Phoenix Children's Hospital.
Little 8-year-old Xavier also called for help.
"I was talking to my friend and then I heard the scream, and I rushed over to my other friends house and called," said Xavier.
The family's daughter had a friend over that was also attacked. She was bit on the legs according to the family friend.
911 Operator: "And this is your dog?"
911 Operator: "What report did you get?"
Caller: "My kids, one is is being bit by him right now, and he has already bit the other, she got away from him."
911 Operator: "Ok and this is a full grown pit bull?"
The frightening moments still haunt the family. They asked authorities to take the dog.
Both children are recovering in valley hospitals.
According to authorities there have been two other incidents with the dog, the family requested the dog be euthanized.