A MANHUNT is under way after the body of a woman believed to be Sarah Cafferkey was found in a house in Melbourne's west.
Homicide squad investigators raided a house in Fongeo Drive, Point Cook, late on Saturday night, discovering a body inside.
Although Victoria Police have not formally identified the body, the discovery was made by detectives probing the 22-year-old's disappearance.
The house, in a new estate, is believed to be rented by two men. It was under police guard last night as forensic experts scoured the crime scene.
Ms Cafferkey's mother, Noelle Dickson, said she did not want to talk in detail about her daughter's disappearance because it was too upsetting, but police had made the case their top priority and were aware of Facebook threats to her daughter.
"Obviously police have been all over the Facebook page," Ms Dickson said.
"This is a top priority for the homicide squad.
"I can't talk about this because it just upsets me."
A screenshot of Ms Cafferkey's Facebook page shows she was in a dispute before disappearing.
"Mature people of the opposite sex's (sic) are able to have a friendship based on genuine interest and care for each other. Stop being immature over Facebook please, I have had enough," she wrote on November 4.
"I will delete you if you are unable to be civil," Ms Cafferkey wrote.
Police would not reveal whether the Facebook page was part of their investigations or an unrelated incident.
Detectives also would not elaborate on whether anyone had been questioned or the circumstances of the death.
Det-Sgt Mark Hatt of the homicide squad said police executed a search warrant late on Saturday night and found the body.
"Today that body is being examined as part of a post mortem," he said yesterday.
"The body was located throughout the night, so in the early hours of (Sunday) morning ."
Det-Sgt Hatt confirmed no one was under arrest and the investigation into what had happened to Ms Cafferkey was ongoing.
The case, which was taken up by the homicide squad in the middle of last week, is now considered a murder investigation.
Neighbours believe the house where two men were renting had been vacant for about a week, but they had not seen a woman enter it.
Catherine Bennett, who lives near the Fongeo Drive house, said two men rented the house but she had not seen anyone there for the past week.
"One of them had only just moved in about four to six weeks ago," she said.
"He had a little dog and we didn't see him much. I haven't seen him for a good week or so. It's scary. It's horrible.
"We've got kids and we live in a nice street. I never saw the girl or any girl going in or out. I haven't seen anyone in the house for about a week."
More details about the nature of the death are expected to be revealed in the next 24 hours as the Coroner's office begins its probe.
Police have previously revealed that Ms Cafferkey has not accessed her bank account or used her mobile phone since she disappeared.
She was last seen by her mother on November 9 and fears for her safety were heightened after her car was discovered on Thursday in Owen St, Maribyrnong.
Ms Dickson said homicide squad detectives had spoken to her.
"They were just asking me about school, what type of person she is, her life and what she liked doing," she said.
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