By ninemsn staff AAP
The three-day-old baby taken from a hospital in Perth has been found on a bus en route to Kalgoorlie.
A police spokesman said a 31-year-old woman had been arrested after police found her with the baby girl on a bus at Northam.
He said the baby was unharmed and will be reunited with her mother in Perth today.
The woman is being questioned by detectives, the spokesman said.
Police earlier reported that a woman of Aboriginal appearance took the newborn from King Edward Memorial Hospital in suburban Subiaco at 6.15pm (WDT) on Wednesday.
The woman allegedly asked the baby's mother if she could take a photograph of the baby. The mother then left the room and when she came back the baby was gone.
The hospital supplied police with security footage of the night.
"We are certainly looking for a particular person," Inspector Paul Ferguson had said.
Police have not named the woman.
The woman who took the baby is believed to have told staff she was the girl's aunt.
The hospital says it will thoroughly review its security measures.
"We would like to reassure our patients and the wider community that the hospital is secure," acting executive director for the hospital's women and newborn health services, Philip Aylwood.
Health Minister Jim McGinty said security at hospitals should be constantly looked at but they could not be locked down like a jail.