Victoria Police are investigating the torching of three cars in a car park in Braybrook overnight.
A crime scene guard has been put in place at the Braybrook carpark.
Emergency services were called to the car park on Ashley Street about 4.20am, police spokeswoman Melissa Seach said.
No one was hurt in the blaze, but the fire has been deemed suspicious.
An arson chemist is expected to attend the scene this morning.
