A man was bitten on the thigh by a dog in Limbury Mead Park on Tuesday.
Two large dogs ran towards the 41-year-old victim at about 5.20pm and the victim froze but one of the dogs bit his leg.
This caused the victim to fall to the ground and a man called the dogs off.
The man with the dogs is described as white, 5ft 11 with a large stocky build and wearing a dark brown or black padded knee length jacket.
Both dogs were large and one was similar to a Labrador or Golden Retriever.
The victim became involved in an argument with the man but fearing he would be injured further he managed to flee from the scene to safety and called the police.
The officer investigating this incident, PC Lucy Craddock, is keen to trace anyone who witnessed the attack, overheard the argument or anyone who can identify the man with the dogs.
PC Craddock said: “Luckily the victim managed to flee the scene to safety before further injury. We believe the man with the dogs was in the company of a woman who was walking a small Yorkshire terrier type dog and I would urge this woman or anyone else who heard or saw the incident to contact officers.”
Anyone with information relating to this investigation can contact PC Craddock, in confidence, at Bedfordshire Police on 101, or text information to 07786 200011.
Alternatively you can contact the independent crime fighting charity Crimestoppers, anonymously, on 0800 555 111.