A homeowner woke up the morning after Halloween to find their car and house in Fulwood splashed with blue paint.
The black car, parked at an address in Conway Drive, is covered in paint.
Blue is also splattered up the doors and windows of the house.
Lancashire Police confirmed that the incident had been reported to them and that the force was investigating.
One online commentator said: “Trick or treat is one thing, outright vandalism is disgraceful.”