Police says they have had a great public response after releasing a picture of a knife that was used to kill a Wellington mother.
Rongmei Fan, known as Mei, was savagely attacked in her Miramar home on November 8, hours after dropping off her children at school.
Her body was discovered by a friend two days later.
Wellington police yesterday released a picture of the 32cm knife with a wooden handle with the word `CARVER' stamped into the base which was used to kill the 37-year-old.
Detective Senior Sergeant John van den Heuvel said while the image of the knife might be upsetting for some, knowing where it came from was key to finding the person responsible for killing Ms Fan.
"The knife could have come from anywhere so we want people to take a close look at the photo to see if they recognise it.''
Today, a police spokesman said a number of people had called the investigation team about the knife.
"There's been a great response from the public in terms of providing information about the knife and where it might have come from.''
Investigators would work through those lines of inquiry over the coming days, he said.
Ms Fan died from multiple injuries consistent with a violent attack, Mr van den Heuvel said last week.
"It is clear that this was a brutal and vicious attack that has taken the life of a young mother,'' he said.
They were among a 40-strong team of police experts, including investigators and forensics, working on the murder case - dubbed Operation Brussels.
A dedicated 0800 number and email address has been established for the inquiry - 0800 348 348 or operationbrussels@police.govt.nz.