A man in his 60s needed hospital treatment after being assaulted in Victoria Park, Bristol.
The man was walking with his partner in the park on Saturday, January 16 between around 12.30pm to 1pm when they saw a couple approaching them.
A confrontation took place near the takeaway coffee shop and a man, who is believed to be about 30 years of age, punched the victim a number of times.
The victim needed hospital treatment for his injuries.
Enquiries are still ongoing into the incident which police believe to be an isolated event.
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In a statement, Avon and Somerset Police said: "The offender was described as white, at least 6ft tall and of a stocky build.
"He was clean-shaven and had a piercing in his nose and lip.
"The woman he was with had dark hair and they were walking a small dog at the time.
"House-to-house and CCTV enquiries have been carried out."
Police believe this to be an isolated incident at this time, but would ask any witnesses to call 101 and quote reference number 5221016096.
