Police are calling for witnesses in an attempt to catch the owner of a "dangerously out of control" dog which bit a family's labrador last week.

The horrific attack happened on Friday, March 24 when two "stocky rottweiler-sized" dogs sprinted up to Tina Colney's husband, who was walking his three pups, on their leads in Fitzmaurice Pavilion in Thorpe St Andrew.

Norwich Evening News: The attack on Molly left her with a severe wound and hefty vet billThe attack on Molly left her with a severe wound and hefty vet bill (Image: Tina Colney)

One of the dogs bit into the back leg of the family's seven-year-old golden labrador Molly leaving her with a nasty wound.

Police are investigating, with a spokesman saying: "We can confirm the incident was reported to police on Saturday, March 25.

Norwich Evening News: Seven-year-old golden labrador Molly with owner Tina ColneySeven-year-old golden labrador Molly with owner Tina Colney (Image: Tina Colney)

"The incident involved a person in charge of a dog dangerously out of control at Fitzmaurice Park in Pound Lane, Thorpe St Andrew in Norwich on Friday, March 24 at around noon.

"Enquiries are ongoing.

Norwich Evening News: The family said that the attack will change Molly foreverThe family said that the attack will change Molly forever (Image: Tina Colney)

READ MORE: Dog attacked in Heartsease park suffers cuts

"Anyone with information can contact PC Jonathan Parker at Norfolk Constabulary on 101 quoting reference number: 36/21405/23."

Mrs Colney said: "We're absolutely devastated. This will change Molly for the rest of her life.

"The leg is so damaged she won't be the same again."

Norwich Evening News: Police said anyone with information can contact PC Jonathan Parker at Norfolk Constabulary on 101 quoting reference number 36/21405/23Police said anyone with information can contact PC Jonathan Parker at Norfolk Constabulary on 101 quoting reference number 36/21405/23 (Image: PA)