Police are continuing to investigate the disappearance of missing 22-year-old English tourist Grace Millane.
The backpacker, reported to be from Essex, has not been in contact with her family for several days, including on her 22nd birthday on Sunday.
The image showed her on Auckland's Victoria Street near the SkyCity entertainment complex at around 7.15pm on Saturday.
She appears to be alone and is wearing a pink wristband - possibly from a club night - and flat trainers, thought to be Converse.
Police are asking anyone who may have seen her or who knows where she is to get in touch.
Her family, who said they spoke to her "most days", became concerned when she failed to reply to birthday messages on Sunday.
He said: "Please, please pick up the phone and get in touch - we are really anxious about you".
They became anxious when she failed to contact them on her birthday...
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Mr Beard said police found some of Ms Millane's items at the backpackers she was staying at in the Auckland CBD but wouldn't divulge what the contents were.
Her brother Michael told the Herald she was six weeks into a year-long overseas adventure.
"On Monday, it was weird that we hadn't heard from her so [on Tuesday] we started to make enquiries down the right channels and realised the last time she was seen was on Saturday by one of her room mates in a hostel she was staying at".
Detective Inspector Scott Beard appealed for anyone who could provide information to contact police on 0800 676 255. The last contact she had was with her roommate on Saturday morning, ' he said.
Another brother urged people to share the post, adding: "We haven't heard from my sister since Saturday".
Ms Millane graduated from the University of Lincoln in September and planned to travel around the world.
She also made money selling paintings which she exhibits on her own website.