A woman who went missing from home and who was spotted in Lancashire is still missing after more than three weeks.
Sandra Hall, 56, has not been seen since she left her Bognor home on Sunday, February 3 at around 10.20am.
Police believe she has connections to Lancashire and may have been spotted in Lancaster just over a week ago.
CCTV images have been circulated in the city and posters appealing for information are on display in shops and cafes.
Police say there have also been extensive searches of land near her home town.
Banks, hospitals and homeless shelters across Lancashire are also being searched by officers.
Sergeant Chris Pipkin, of Sussex Police, said: ““We will continue to view CCTV from railway stations and bus routes both in Sussex and Lancaster and any further reported sightings of Sandra will be investigated.
“I would like to thank Sandra’s friends and family for their continued support and assistance and for the help provided by local officers in Lancaster.
“Due to the length of time that has now passed, we are extremely concerned for her welfare.
Anyone with information should call police in Sussex on 101, quoting Op Leeson.
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Weather for Preston
Sunday 19 May 2013
Temperature: 10 C to 16 C
Wind Speed: 16 mph
Wind direction: North west
Temperature: 11 C to 16 C
Wind Speed: 20 mph
Wind direction: West