Police have arrested a person over the disappearance of a Christchurch real estate agent and charged them with kidnapping.
The New Zealand Herald is reporting the person was arrested at an airport trying to flee the country.
Police said the investigation is ongoing and they are seeking sightings of a silver Mitsubishi sedan with the registration DPH101.
Police said they are keen for any information on the car's movements, particularly on Wednesday July 19 in Wigram, Hornby, Tai Tapu, Halswell and New Brighton.
Yanfei Bao has been missing since Wednesday and was last seen in the Wigram area at around 10:30am.
Detective Inspector Nicola Reeves said search warrants were carried out at two addresses, one in Bryndwr and one in Wigram on Saturday.
There were police cars outside the two properties on Sunday.
Police said on Saturday night they had seized a vehicle of interest.
"As a result, several people are assisting Police with enquiries," Reeves said.
"Any updates will be issued proactively when further information is available."
The mother-of-one recently joined Harcourts as a real estate agent and has extensive experience in sales.
She was last seen on Vickerys Road in the middle-class area of Wigram around 10:30am on Wednesday morning. Her car was left parked on Iroquois Place.
Christchurch police and her family say Bao's disappearance is very out of character and there are deep concerns for her safety.
Forty police officers are working on the case, which is being treated as a missing persons investigation.
Police located one of her cellphones nearly seven kilometres away. Investigators found it in the grass berm along the Southern Motorway thanks to assistance from the public.
However, Bao remains missing.
"Her family are very perplexed about her missing. This is very out of character, she's a hard-working mother with a nine-year-old daughter," Det Insp Reeves said on Saturday.
Police have knocked on every door of Vickerys Road where Bao was last seen trying to promote her real estate services.
"It's at one of those houses that she has stopped and spoken to an occupant is the last sighting," Det Insp Reeves said.
Now a friend claims they spoke to the 44-year-old woman on messaging app WeChat after that sighting, posting on Facebook to say: "She mentioned about a potential client who wants to transfer money to NZ and checked if (sic) about the rate and channel."
"She said she was going to call the person" and "would call me back" - however "she did not".
Det Insp Reeves said Police have received more than 40 pieces of information from the public following a plea for help.
"We want to thank the public for coming forward, and encourage anyone who has not yet done so to let us know if they have information that may assist."
But there is still no sign of her.
Police say anyone with information should get in touch with Police via 105, either by calling or going online to https://www.police.govt.nz/use-105 using ‘Update Report’.
