A cat has been brutally killed and its blood was used to smear a threatening message on the wall of a Gold Coast house, police say.

Vandals wrote the words “WHERS [sic] MY MONEY? TIK TOK!” on the wall of the Arundel house on Hazel Street early on Tuesday morning.

Cat's blood was used in a threatening message to an Arundel household. Credit:Nine News

They also torched a car on the driveway while the four adult occupants were inside the house.

Investigators are unsure how many people were involved in the attack.