A bystander who came to the aid of a group of people in a heated row with a man was attacked and left injured on Saturday night.
Senior Sergeant Jymahl Glassey said police were called to Kaka St, Masterton on Saturday at about 10pm after a 44-year-old Masterton man had been "seriously" assaulted.
Mr Glassey said an argument between a group of three men and a woman with another man had escalated and one of the members of the group sought help from a nearby resident.
"The victim went to the assistance of some other people that were dealing with the offender and was subsequently assaulted," Mr Glassey said.
The man received a cut chin and suspected broken thumb and required medical attention.