Mother-of-three Gaynor Lord can be seen walking through the streets of Norwich in the footage.
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Police have released CCTV footage showing the last known movements of a missing woman.
Gaynor Lord, 55, was reported missing in Norwich after failing to return home from work on Friday afternoon.
The footage shows her hurrying through the city centre carrying her coat and handbag before making her way along Queen Street to Norwich Cathedral.
Specialist divers joined the search after police said it was likely she had “entered the water”.
The mother of three worked at Jarrolds department store as a retail assistant for Bullards Gin and had been due to finish at 16:00 GMT on Friday.
Image source, Family handout
But CCTV shows her leave at about 14:45, before walking along London Street towards the cathedral.
The last captured sighting of Ms Lord shows her walk along St Crispins Road towards Pitt Street before going up St Augustines Street at 16:01.
Some of Ms Lord’s belongings, including clothing, jewellery and a mobile phone were found at “various locations” in Wensum Park later on Friday and and her coat was discovered in the water.
Image source, Shaun Whitmore/BBC
Norfolk Police has urged anyone who may have dashcam or doorbell footage of Ms Lord before her disappearance to get in touch.
Norwich’s policing commander Supt Wes Hornigold told the BBC: “There’s nothing within those CCTV image that would give us any rise for concern.”
He said there was no evidence Ms Lord had come to harm.
“We’ve been liaising with the National Crime Agency who have given advice around specialist underwater dive teams and we’re seeking assistance from forces with this capability,” he said.
Image source, Shaun Whitmore/BBC
Wensum Park has been closed to the public since Saturday.
Since then, police, with the help of the fire service and coastguard, have been scouring the area looking for clues.
On Tuesday, Rosie Richards, a woman who lives nearby, said she saw a woman matching Ms Lord’s description in the park at about 16:00 on Friday.
She said: “It’s really upsetting… I’m just thinking of her friends and family, because she is a sort of similar age to my mum and that would be awful to be going through what they are going through right now.”
Image source, Norfolk Police
Timeline of events from Friday 8 December
- Friday 14:45 Gaynor Lord is seen on London Street in Norwich city centre, heading towards the cathedral
- Friday at about 16:00 An eyewitness says they saw a woman matching the description of Ms Lord in Wensum Park
- Friday evening Ms Lord is reported missing after failing to return home from work. Her belongings, including clothing and jewellery, were found by a member of the public in Wensum Park
- Sunday Police announce Wensum Park is closed after more belongings, including jewellery, are found
- Monday Specialist search teams use a drone and sonar equipment to scour the area but nothing is found
- Tuesday Police turn their attention to underwater searches
- Wednesday Police release CCTV footage of Ms Lord who was last seen walking up St Augustines Street
Image source, Shaun Whitmore/BBC
Ms Lord is described as white, 5ft 6in (1.67m) tall and with blonde, shoulder-length hair in a bob.
When she was last seen she was wearing a white shirt, yellow tank top, large olive-coloured coat and a scarf, police said.
“We haven’t been able to establish why she left early and her disappearance is out of character so we are naturally concerned for her welfare,” Supt Hornigold added.
Police said Ms Lord’s family was being supported by specialist officers.
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