Vandals torched a truck parked in a Dandenong South industrial estate.
CFA crews responded to the fire in Hedderwick Road about 5.05am on Sunday 5 March.
The blaze started in the Isuzu truck’s cabin and spread to the rear carriage, destroying the vehicle.
The truck was empty at the time, and parked at the back of a row of factories.
Call Crime Stoppers on 1800 333 000 with any information.