Christchurch woman's whereabouts remains a mystery

Sharon Helen Cross was last seen in Auckland city at 1.30am on December 30.

Police are still searching for a Christchurch woman who has gone missing under mysterious circumstances.

Sharon Helen Cross, 57, was last seen in Auckland city at 1.30am on December 30 and was reported missing the next day.

Despite a number of reported sightings, she had still not been located, said Auckland City Police spokeswoman Noreen Hegarty.

"She has expressed some concerns about some wellbeing and safety issues, but whether there is any grounds for those concerns is something we are looking into," she said.

"She is still missing and we are anxious to hear from her or anybody that knows where she is."

Police said on Monday there was a possibility Ms Cross has travelled to Dunedin, and could be using her maiden name Kara.

She is described as a European, about 5' 7" (174cm) tall.

"She is of skinny build with long black hair which she usually wears down. Police have been advised that she may have cut her hair."

"Anyone sighting Sharon should immediately contact police on 111."

• Information can also be provided to the Auckland police on 09 302 6400 or anonymously via Crimestoppers on 0800 555 111.