A man suffering from memory loss has been missing since last week.
David Harrop, 58, from Hove, normally has a carer with him.
He was last seen near the Brighton Centre.
He is slim and tanned with black, greying short hair and was wearing a red t-shirt, khaki trousers, grey fleece, a jungle hat and brown leather shoes.
Police think he may be heading for Dagenham, where he used to live.
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