A black Mercedes-Benz has reportedly been towed from the house of Melbourne woman Karen Ristevski.
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A caller to radio station 3AW reported the incident on Monday afternoon.
The caller said the car, sealed with yellow tape, was loaded onto a tow truck outside the Avondale Heights home at 1.20pm.
An unmarked police car with flashing lights escorted the truck away from the home, the caller said.
Victoria Police has refused to comment.
Ms Ristevski went missing on June 29 last year.
Her body was found between two logs in the Macedon Regional Park on February 20, seven months after her disappearance.
A new search of Mount Macedon was conducted earlier this month after police received fresh information in the case.
This came after witnesses reported seeing a black Mercedes-Benz, similar to the model Ms Ristevski drove, in the Mount Macedon area the day of her disappearance.
One witness told investigators a lone male was also seen near the car.
Ms Ristevski was last seen after a fight with her husband, Borce Ristevski.
Mr Ristevski remains a key person of interest in the case and police have not ruled him out as the driver of the vehicle.
In June, police released CCTV footage of a Mercedes-Benz SLK coupe identical to Ms Ristevski's travelling through Diggers Rest towards Mount Macedon on the day she went missing.
The registration was not visible in the footage, but investigators were working under the hypothesis it was Ms Ristevski's car.
Mr Ristevski reportedly told detectives he had driven his wife's 2004 Mercedes-Benz coupe on the day she disappeared to test a faulty fuel gauge.
He said the car hit a bump in the road and the problem fixed itself, so he turned around and returned home.
Fairfax Media is not suggesting Mr Ristevski was involved in Ms Ristevski's disappearance.