Black graffiti tags were reported at two locations in Warragul on Saturday night.
Police said a vehicle and front porch of a house were damaged.
A vehicle parked in Sheoak St was targeted overnight on Saturday. They reported black graffiti tags sprayed on the front and back panels of the vehicle.
A tag was was sprayed on a front porch at a property in adjoining Ironbark St on Sunday at 12.15am. Police believe it may be linked to black graffiti tags in Albert St last week.
They said a back wooden fence of a residential property was damaged between 7pm on Monday, June 30 and 7am on Tuesday, July 1.
It is believed to be one of two properties impacted by graffiti on the night.
Anyone with information is urged to contact Warragul police on 5622 7111.