A pet dog was beaten and left for dead wrapped in a sleeping bag.
Jeffrey Adams discovered his black and tan cross, Max, seriously injured the day after he let him out of his home in The Acre, Wyke.
Mr Adams, who has had Max for nine months, said: "I can't believe anyone could do something like this. To repeatedly beat an animal and just leave him to die is wicked.
"It was pure chance that I found him. It's been touch and go all over the weekend. I just hope he won't be mentally scarred by what has happened."
The RSPCA has launched an investigation and is urging people to come forward with information.
Inspector Nicky Foster said: "This was a vicious attack that must have involved more than one person.He's quite a big dog and must have been restrained while he was beaten in the head.
"Whoever did this took pleasure in making Max suffer, and we are keen to hear from anyone who can help us to find those responsible."
The three-year-old dog spent the weekend at a veterinary surgery where he was treated for his injuries. Although he is recovering well he is still being given painkillers.
Max disappeared from his home at about 10pm last Thursday. Anyone with any information should call the RSPCA Cruelty and Advice Line on 0870 5555999.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article