Police have released a CCTV image of a person wanted for questioning over an armed robbery in Wellard.
Police say a teenage boy was robbed by another male armed with a knife on a train just as it was pulling into Wellard Train Station between 8.40pm and 8.55pm on Monday, August 26.
The offender then fled with the victim's property.
The offender is described as being about 175cms tall, with a medium build and short blonde hair.
He was wearing a light grey hooded jumper with writing on the front and black jeans.
Detectives wish to speak to the person pictured, who they believe can assist them with this investigation.
Anyone who recognises the person pictured, or has any information relating to this incident, is urged to contact Crime Stoppers on 1800 333 000 or via www.crimestopperswa.com.au.
Early voting for Secret Harbour by-election begins Monday
Welfare concerns for missing Swedish national last seen in Warnbro
Wanted man last seen in Golden Bay
Passenger critically injured in West Pinjarra crash
Unregistered painter fined for requesting hefty deposit from Singleton homeowner and not doing the job
Police hunt driver following dangerous Baldivis pursuit
Welfare concerns for boy last seen at Port Kennedy skate park
Rubbish truck catches fire in Baldivis
Driver injured in bus crash in Rockingham