UPDATE: Marley Olsen has been located safe and well.
WA police are urgently seeking information to help locate Marley Olsen, who hasn't been seen since yesterday.
The 12-year-old was last seen in the Port Kennedy area around 7pm on Tuesday.
He is around 170cm tall with fair skin and a slim build. His ginger hair is shaved on the sides with a plait mohawk style on top.
Marley was last seen wearing a dark blue Everlast hooded jumper, grey or blue sweat pants, a baseball cap and could be carrying a school bag.
He is known to frequent the Port Kennedy and surrounding areas.
Anyone with information is urged to contact police on 131 444 and quote CAD 144212.