Police are investigating after a burglary at an equestrian centre in Werribee South on 9 January, Victoria Police say.
It is believed an unknown man cut through a chain link fence and entered a storage compound within the K Road premises sometime between 2.30am and 4am.
The man wandered through the area for about 1.5 hours and forced his way into a storage shed and several shipping containers.
It is not believed any items were stolen.
Police have released images of a man they believe may be able to assist with their enquiries.
He is perceived as Caucasian in appearance with a beard and hair tied in a bun, and was wearing black shorts, a white T-shirt and black jacket.
The man was also carrying a backpack.
Anyone with information is urged to contact Crime Stoppers.
