A serial sex offender may have been preying on women in South Auckland and police are appealing for victims to come forward.
Police this week arrested a 25-year-old Samoan man after attacks on three women in Otara on July 3 and 7 and September 22.
A source said the man, who is in custody, had hinted to police there might be more victims.
The man allegedly followed the women in his car or on foot. He waited until they got to a park or secluded area before grabbing them and sexually assaulting them.
Detective Senior Sergeant Dave Glossop said police "had good reason to believe" the man was responsible for more attacks.