Detectives are treating an unprovoked attack on a 40-year-old Eastern European man in Parsons Lane at Littleport as a hate crime.
It happened at about midnight between June the 17th and 18th.
A man and a youth approached the victim as he walked home and verbally abused him before punching him several times causing him to fall to the ground.
After the assault he ran to the Crown pub where police were alerted. He was treated in hospital and released.
Police are appealing for information and have released CCTV of a man they would like to trace.