Police launched a homicide investigation after the remains were discovered in South Auckland on August 11. Earlier this month, Detective Inspector Tofilau Famanuia Vaaelua said the children were likely to have been between 5 and 10 years old when they died. He said investigators believed they had been dead for three or four years and the cause of death was unknown. According to Seoul police, a woman believed to be the mother of the two children was in South Korea on August 22. South Korean police are cooperating with New Zealand authorities through Interpol. The storage company that sold the luggage is also helping police with inquiries into other items that may be connected to the suitcases, police said earlier this month. Police have stressed that the family who bought the suitcases is not connected to the children’s deaths.