Porirua Police are investigating an assault on a 16-year-old female in an alleyway between Mungavin Avenue and Wiltshire Place at around 4pm on Sunday 6 March.
Detective Sergeant Dave Jones wants to hear from anyone who witnessed the incident.
He would also like to hear from a woman who was in the Wiltshire place area and was approached by the distressed victim and gave her a ride home.
Anyone with Information can call the Porirua Police Station on (04) 238 1400. Information can also be provided anonymously to Crimestoppers on 0800 555 111.