In a horrific attack, an 11-year-old boy was mauled by a dog in Liverpool, England. The child suffered severe injuries including getting his flesh ripped off the arm in the gruesome attack by the Staffordshire Bull Terrier.

The incident took place last week when Cooper Johnstone was out with his friend. Graphic photos of the boy's injuries were posted by U.K.'s Mirror. The child was taken to Alder Hey Children's Hospital for treatment.

"He was planning his little afternoon with his friend and filling up the paddling pool. He went to his friend's house to knock on and ask him to come around," the child's dad, Ellis Johnstone, told the Liverpool Echo. "That was around 1pm and I got a phone call at about 10 past from my daughter saying Cooper had been bitten by a dog."

The 46-year-old dad, who lives in Ormskirk, said: "I ran straight around and went in [to my daughter's house]. One of the neighbors had got a towel and put it around his arm... He was sitting there just screaming with pools of blood everywhere. He was just screaming."

Ellis said his son was left "terrified and having flashbacks" by the attack, adding: "He thought he was going to die."

Cooper was released from Alder Hey on Sunday but will have to return on Tuesday to find out the next treatment that will be required for the injuries to his arm, according to Mirror. The attack left him with puncture wounds to his chest as well.

The family decided to share photos of the severity of Cooper's injuries to raise awareness for other parents about dog attacks.

"I want to raise awareness of what can happen, whether it's a family pet or a kid with a dog. It's about raising awareness of what dogs can do. He could have been dead," Ellis said.

The incident was reported to Lancashire Police and the officers responded to their concerns about the dog. The fate of the dog remains unknown. It also remains unclear if charges will be filed against the dog's owner.

In this image, a Dobermann dog is seen running toward his trainer in Beirut, Lebanon, Oct. 27, 2010. JOSEPH EID/AFP/Getty Images