A woman underwent surgery after losing part of her finger when her dog was attacked by a stray in a Sheffield park.
Lynne Carlton, aged 50, was walking her dog Sid in Colley Park, Parson Cross, when a stray ran towards them and attacked her dog.
Mrs Carlton, whose own dog, a Staffordshire Terrier rescue dog, was on a lead attempted to separate the dogs and was bitten on her hand - losing part of a finger.
She returned home covered in blood and was rushed to hospital, where she underwent surgery.
The incident has been reported to South Yorkshire Police and an investigation is now underway.
Lynne and her family, from Parson Cross, know who owns the dog and are now keen to press charges of criminal damage, due to the physical and psychological damage inflicted.
Her son Adam, 26, said the family is eager for no other dogs to be attacked.
“My mum was leaving the park with our dog when a stray came from out of nowhere and went straight for Sid,” he said.
“My mum had to step in to try to separate them but it was such a vicious attack she lost part of her finger and will be disfigured for life now.
“We are not blaming the dog as it is the way they are trained that determines the way they are, we just want the owner to make sure that it is not allowed to roam free again and put other dogs at risk of similar attacks.”
Lynne’s husband Paul, 50, said his wife was ‘very shocked at what happened’.
“I am angry that somebody would let their dog roam free when we always have our dog on a short lead and in a harness. It is a shame not everybody is the same,” he added.
A South Yorkshire Police spokeswoman said: “Police were called following reports a woman and her dog had been assaulted by another dog in Colley Park, off Monteney Road in Sheffield.
“Enquiries are ongoing.”
Anyone with information about the attack or stray dog should call South Yorkshire Police on 101.