UPDATE: Sienna has been found safe and well.
-------------------
There is urgent welfare concerns for a missing 14-year-old girl last seen in Lakelands.
Sienna was last seen on Lake Valley Drive around 6pm on Sunday, August 25
She is described as medium build with fair skin and long dark hair.
Sienna was last seen wearing a grey jumper with "White Fox" in white writing on the back, a blue denim skirt, white socks and dark sneakers.
Anyone who sees Sienna is asked to call police immediately on 131 444.
Baldivis Police on the lookout for reckless dirt bike riders
WATCH: Youths captured on CCTV stealing car in Golden Bay
Fire crews battle early morning blaze in Warnbro
Driver charged over alleged hit-and-run on Mandurah Terrace
More paramedics, ambulances to be stationed in Dawesville, Australind
Strict demersal fishing bans to come into force off WA coast to save species from extinction
Police call for witnesses to fatal Waroona crash
Teen injured in suspected hit-and-run in Mandurah