A man has been arrested after an unprovoked assault in a Palmerston North park this afternoon.

Detective Sergeant Shelley Ross said police responded to a park on Dogwood Way about 1pm, following reports one person had received injuries consistent with a stab wound during an unprovoked assault.

“One person was transported to Palmerston North Hospital in a serious condition where they are receiving medical treatment,” she said.

“Police would like to thank the members of the public who were delayed while police responded to the incident.”