Around 05.00am on Tuesday 6 April 2021 a group of people were seen starting a fire in Pioneer Park on Federation Parade in Gosnells.
DFES has attended the park and put out the fire.
Police have released a CCTV image of two men who they believe may be able to assist them with their investigation.
The first man is described as: slim build, wearing a red baseball cap, dark jacket with a logo on the back and dark pants.
The second man is described as: slim build, wearing a hooded jumper and long pants.
If you have any information about the identity of this man or details of this offence please contact Crime Stoppers on 1800 333 000 or report online at www.crimestopperswa.com.au. You can remain anonymous if you wish and rewards are available once charges are laid. Please quote Reference Number 10035