UPDATE, 7.25am: Police have advised that the missing boy has returned home.
EARLIER: WANNEROO Police are urgently seeking information regarding the whereabouts of 14-year-old William McLachlan, as they have concerns for his welfare.
William was last seen about 8.30pm last night, August 14, leaving his home in Landsdale on foot.
William is described as being 170cm tall, with a slim build, a fair complexion, short dark brown hair and braces.
He was last seen wearing maroon coloured track pants, black and white sneakers and possibly a red hoodie.
Anyone who sees William or has information regarding his whereabouts is asked to call police immediately on 131 444.