Police Transport Unit are seeking assistance with a damage incident that occurred at Victoria Street Train Station, Mosman Park on Friday 6 July.
At approximately 9:15am a man has entered the platform at the station and damages a shelter wall before leaving the station on a train to Fremantle.
Police have released a CCTV image of a man who they believe may be able to assist them with their investigation.
The man is described as fair skinned, 19-21 years of age, 170-180cm tall with a slim build and short hair. He was last seen wearing a dark blue jacket with a red jacket underneath, a red/black backpack and a plastic shopping bag.
If you have any information about this offence make a report online at crimestopperswa.com.au or call Crime Stoppers on 1800 333 000, where all calls are strictly confidential, and rewards are offered. Please quote Reference Number 8973.