Images released of Altona trespasser

An image released by police of a man trespassing at an Altona vehicle storage facility on Tuesday morning. (Victoria Police)

Police are appealing for public assistance to identify a man who trespassed at an Altona vehicle storage facility.

It is believed three people inside a gold Nissan X-Trail pulled over at the Altona business about 9am on January 7.

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.

The man is described as Caucasian in appearance, 25-35 years old with a medium build.

Detectives believe this may be linked to an incident on October 21 last year where 45 vehicles were stolen from a Salmon Street facility in Port Melbourne.

Forty-three 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 at www.crimestoppersvic.com.au.