Dawesville residents have been left shocked after CCTV emerged of a driver appearing to deliberately run down a kangaroo and her joey.
It happened near the intersection of Macedon Way and Kamak Parkway around 12.30am on Tuesday, both the mother and joey killed on impact.
Jenny Norton from Perth Marsupial Care told 10News it is beyond belief why someone would intentionally run down a kangaroo.
"I'm devastated and disgusted why anyone would do this on purpose, these poor kangaroos in Dawesville, they're trapped here, they have no where to go," she said.
RSPCA WA have been contacted for comment.
Anyone with information should contact Crime Stoppers on 1800 333 000 or the RSPCA cruelty line on 1300 278 3589.
Mandurah homeless camp goes up in flames
Teens armed with knife, scooter charged over Rockingham Shopping Centre fight
Mandurah private school teacher charged with alleged sexual abuse of male student
Welfare concerns for missing Ravenswood girl
Detectives investigate Rockingham aggravated robbery
Bunbury businesses destroyed in suspected tobacco war firebombing
Man charged after Rockingham Shopping Centre incident
Concerns for missing West Pinjarra teen
Scorching Christmas temperatures for Perth, Rockingham, Mandurah