Officers are appealing for information after a 34-year-old man was assaulted in Attleborough.
The incident happened at about 8pm on October 1.
The man was assaulted by four unknown males wearing dark clothing, as he was walking between the skate park and the social club at Connaught Recreation Ground.
The man suffered bruising to his ribs.
Officers would like to hear from anyone who may have noticed anything suspicious in the area around the time stated or from anyone with information in relation to this incident.
A silver car, possibly a Honda Civic, was seen in the area at the time.
Contact PC Dave Allison at Thetford Police Station on 101 or call Crimestoppers anonymously on 0800 555 111.