UPDATE: Marguerite Coates has been found safe in Busselton.
South West District police have called on the public for help to locate Marguerite Coates, who was last seen leaving her home in Busselton this evening, October 9.
It is understood Ms Coates left her home on Peel Terrace about 6.30pm on Wednesday evening.
Police have appealed for any information that may assist in the search, with concerns held for her welfare.
Anyone with information is urged to contact Police on 131444.