By Cam Lucadou-Wells
An unknown intruder has broken into and extensively damaged a factory in Dandenong South.
The offender is believed to have smashed a front window to enter the factory in Egan Road about 3.23am on 9 September.
A fire was then started that engulfed the worksite.
Greater Dandenong CIU detectives believe an accelerant was used.
Any information to Greater Dandenong CIU on 9767 7487 or Crime Stoppers on 1800 333 000 or crimestoppersvic.com.au.