Police are investigating a burglary at Tatura where a digger and two trailers were stolen earlier this month.
Police say the unknown offenders arrived at a property on Ferguson Rd in a white utility at about 3.40am on October 4.
Officers were told the thieves forced entry to the premises and rummaged through several sheds, stealing tools and camping equipment.
The offenders loaded and stole a blue box trailer, worth around $4000, and left at around 4.15am.
They returned and stole a Kanga Mini Loader, worth about $10,000, and an Earth Mover trailer, valued at around $40,000.
The offenders fled in the white utility at around 5.45am. It is understood the vehicle was seen travelling towards Byrneside.
Investigators have released CCTV of a white utility leaving the scene, as well as images of the stolen mini loader.
Anyone with information or dashcam/CCTV footage is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at crimestoppersvic.com.au