A man wearing a Superman T-shirt is wanted by police after he viciously assaulted a 14-year-old girl as she walked through a South Auckland park with her friend.
The girls noticed the man following them as they walked through Totara Park, which backs on to the Auckland Botanic Gardens.
The man then approached the pair and "violently" assaulted one girl, as her terrified friend watched.
Detective Sergeant Albie Alexander said both girls were severely traumatised.
He said the attack did not appear to be sexually motivated. After assaulting the girl, the man stood up and threatened the pair.