Officers are concerned for the welfare of Alexandra Clapton, 68, as she suffers from paranoid schizophrenia and has never been missing for this length of time before.
Police in Camden Borough are appealing for the public’s help in locating Alexandra, from Kentish Town.
She was last seen on September 29, 2015.
Alexandra also uses the names Sasha, Sandy and Sandra and is described as white, with brown hair flecked with grey.
Officers seeking to trace her believe she could have been in the Sussex area as recently as Monday, January 11.
Enquires continue and officers are following up on possible sightings in Brighton and Bognor.
A police statement said: “The last known sighting of Alexandra in London was December 23, 2015 at a bank in Hampstead High Street.
“When she was last sighted in London she was wearing a pale blue head scarf, a long black jacket with a furry collar, a grey T-shirt and grey tracksuit trousers. She was carrying a dark coloured rucksack.
“Officers are concerned for her welfare as she suffers from paranoid schizophrenia and has never been missing for this length of time before.
“It is understood that at the time she was reported missing she did not have a mobile phone or an Oystercard.”
Anyone who has seen Alexandra or has any information as to her whereabouts is asked to contact the Camden Missing Persons Unit on 020 8733 6483, quoting reference number 15MIS038997.
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