They were also seeking sightings of a 1999 blue and silver Mitsubishi L200 ute and a man reportedly seen walking along State Highway 14 that afternoon and evening.
Harris said police were following strong lines of inquiry.
“Police would like to thank members of the public who’ve provided information to the inquiry team to date.”
Anyone with information has been asked to update police online or by calling 105 and quoting file number 250509/6749.
Information can also be provided anonymously via Crime Stoppers on 0800 555 111.
The link to the portal for uploading information can be found here.
Brodie Stone covers crime and emergency for the Northern Advocate. She has spent most of her life in Whangārei and is passionate about delving into issues that matter to Northlanders and beyond.