A Christchurch sex worker has been assaulted following a dispute over payment, police say.
The incident occurred around 2.15am on Friday when the 20-year-old woman was assaulted by a man in Cambridge Green, a small park near the intersection of Barbadoes and Salisbury Streets.
The sex worker suffered minor injuries. She was seen by a doctor and did not require further medical treatment.
Detective Sergeant Grant Collins said it was believed the man and woman had walked to the park, heading south along Barbadoes Street from the intersection with Bealey Avenue.
Photos of a man sought in relation to the incident have been released by police.
He is described as a male Caucasian aged in his mid-to-late 20's, with a thin build, tied-back shoulder-length blond hair and an average height of at least 165cm (5ft 5in).