Police in Australia, New Zealand and the US are searching for the parents of a three-year-old girl abandoned at a train station in Australia.
Qian Xun Xue - known as Pumpkin until she was identified on Monday - was found in Melbourne on Saturday.
Australian police believe her father, Xue Nai Zin, fled to the US after dumping the toddler.
In New Zealand, police say they fear for the girl's mother, Annie Xue, who has not been seen since 10 September.
They found a car belonging to 27-year-old Mrs Xue, a Chinese national also known as Anan Liu, at the airport in New Zealand's largest city, Auckland, on Monday night.
Detective Senior Sergeant Simon Scott said police had been in contact with the family over incidents of domestic violence in the last year.
Police were "concerned that Anan has not been able to contact us in relation to her daughter", he said.
They had searched four addresses, including the Xue family home in Mount Roskill, Auckland, he added.
Interpol has also joined the search efforts.
Staff at Southern Cross railway station in Australia's second largest city found the girl crying and alone on Saturday.
Security footage showed Mr Xue leaving his daughter, police say
They named her Pumpkin after the brand of clothing she was wearing at the time.
Security cameras showed Mr Xue, 54, walking from the train platform wheeling a suitcase, leaving the girl behind. Just hours later, Mr Xue fled to the US city of Los Angeles, Australian police say.
Mr Xue - a Chinese-language magazine publisher who had lived in New Zealand for 10 years - had arrived in Australia with his daughter from Auckland on Thursday.
The girl is now in the care of a foster family in the Australian state of Victoria.
She will stay with the family for at least three weeks as the hunt for her parents continues, Department of Human Services (DHS) spokesman Brendan Ryan said.
"She was distressed early in the week when she was asking for mummy but [the foster family] have done a cracking job in supporting her and comforting her," Mr Ryan said.
"She's sleeping okay, she's eating okay and she's quite fond of Vegemite on toast."