Shelia Dale is missing from her home in Maldon.
Essex Police are appealing for help in finding the 79-year-old – who has been missing since Sunday.
She has been described by police as “extremely vulnerable”.
She was reported missing around 9am today and Mrs Dale does not have access to a phone or money.
Her family and police are concerned for her welfare.
Mrs Dale is 5ft 4in tall and police believe that she was wearing a black top and black leggings when she went missing.
She is known to visit the Tesco and Morrisons supermarkets in Maldon, as well as the promenade and cemetery areas.
Anyone with any information relating to Mrs Dale is asked to call Essex Police on 101.
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