Shepparton Crime Investigation Unit detectives are appealing for witnesses after an armed robbery in Shepparton last month.
Investigators were told two victims were driving in a silver Holden Rodeo along the Goulburn Valley Highway between Wanganui Road and the Barmah-Shepparton Road about 9.10pm on 22 June.
It is believed a white SUV pulled in front of the victim, forcing them to pull over.
A man and a woman got out of the SUV and approached the victim's vehicle.
The woman screamed at one victim, demanding money.
It is understood the man used a hammer to damage the Holden before demanding one victim's phone.
The victim refused to hand over her phone and the man took the keys to the Holden.
Officers have been told the man and woman left the scene in the white SUV believed to be a Kia Sportage, which is pictured below.
Investigators have also released facial composite images of the man and woman in the hope it will assist in identifying the pair.
The man is described as aged in his early 20s with dark hair.
The woman is described as in her early 20s with shoulder length blonde /brown hair.
No one was physically injured during the incident.
As part of the investigation police are trying to identify the driver of a blue utility towing a trailer. It is believed the driver may have witnessed the incident.
Anyone who witnessed the incident, with CCTV or dashcam footage is urged to contact Shepparton Police Station on 03 5820 5777 or contact Crimestoppers on 1800 333 000 or log onto www.crimestoppers.com.au.
