Update: Ms Lax and her children have been found safe and well.
Earlier: WA Police have called on the public for help in the search for 35-year-old Perth woman Sue-Ellen Lax and her two children.
Concerns are held for the welfare of Ms Lax, who was last seen on Sunday, February 9 in Camillo south east of Perth.
Ms Lax is believed to have travelled via the Peel region towards Bunbury in a red Holden Adventra.
It is understood Ms Lax is with her two children - a five-year-old and a two-year-old.
Anyone who has seen Ms Lax or has any information regarding her whereabouts is urged to contact WA Police immediately on 131 444.