Vehicle Crime Squad detectives are appealing for public assistance to identify a man who attended a vehicle storage facility in Altona this morning.
It is believed three people inside a gold Nissan X-Trail pulled over at the Altona business about 9am.
A man entered the facility through a hole that had been cut in the fence and was on site for at least 40 minutes before leaving the scene empty-handed.
The trio then drove to a nearby vehicle storage facility but did not get out of the car.
Investigators have released images of a man and car in the hope someone may recognise them.
He is described as Caucasian in appearance, 25-35-years old with a medium build.
Detectives believe this may be linked to an earlier incident on 21 October last year where 45 vehicles were stolen from a Salmon Street facility in Port Melbourne.
43 of these vehicles have since been recovered and police are still searching for two other vehicles, a red Honda CRV and white Honda Civic.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report at www.crimestoppersvic.com.au.