Members of the public are being urged to help officers find Derek Ford, who has been reported missing from Swanley.
Derek is 84 years old and was last seen getting on a bus in West Kingsdown to Swanley at around 9.30am on Wednesday 12 June 2019.
He is described as white, of slim build, around 5ft, 7ins tall and was last seen wearing light green trousers, a beige-coloured jacket, a chequered beige hat and black shoes.
Officers are growing increasingly concerned for Derek’s welfare and have reason to believe he could be in Plumstead or Woolwich.
Anyone who may have seen him or knows where he is should call 101 quoting reference 12-1257.