Update: Albert Relf has been found safe and well.
Police and the family of a missing 87-year-old man from Spalding have said they are concerned for his welfare.
Albert Relf was last seen by family members at around 4pm on Monday, November 20 at his home.
He was wearing a grey v-neck gilet and beige trousers with slippers on his feet.
Anyone who sees Albert is being asked to call Lincolnshire Police on 101 quoting incident 361 November 20.