Missing mother of three Gaynor Lord "seemed a bit off" shortly before her disappearance, an eye witness has said.
Norwich local Rosie Richards has said she saw the 55-year-old just in Wensum Park shortly before she went missing.
Lord's belongings, including her clothing, two rings, her mobile phone and glasses, were found scattered in Wensum Park on Friday evening, while her coat was discovered in the River Wensum, which runs through the park.
"To me she seemed quite calm," Richards explained.
Gaynor Lord disappeared last Friday afternoonGaynor Lord disappeared last Friday afternoon"She was sort of putting her coat down on the floor and sort of performing a yoga pose.
"It just seemed a bit off at this time because obviously it was starting to get dark."
Police have been appealing for anyone who may have seen Lord to come forwards in order to help understand what may have happened to her.
In particular, police are desperately attempting to understand what happened in a 34-minute time period in which the 55-year-old's actions are unknown.
Narrowing the gap could be crucial to finding Lord.
CCTV footage shows Lord in Norwich city centre last Friday afternoon, rushing through streets and narrowly missing moving traffic while crossing a road.
She had left work at 2.45pm, more than an hour before her shift was due to end at 4pm.
“It's really upsetting," Richards continued while talking to ITV.
"I'm thinking of her friends and family because she is a similar age to my mum and that would be awful to be going through what they are going through now."
In a statement yesterday, Norwich policing commander, Superintendent Wes Hornigold, said: “We are releasing the footage of Gaynor’s last known steps on Friday afternoon before she went missing.
“We hope this will help to jog the memory of anyone who may have seen her in the city that afternoon or who may have footage of her journey.
“We are particularly keen on hearing from anyone who may have seen Gaynor in the cathedral grounds, which she enters at 2.50pm and leaves at 3.23pm.
“It’s not clear where she goes inside the cathedral grounds during this time so we’re keen to hear from anyone who may have seen her there.
“We are continuing our extensive searches but would appeal to the public to come forward with any information which may help to find Gaynor.
“In the footage you can clearly see what she was wearing when she went missing.
“This is a particularly stressful time for her family and specialist officers continue to provide support.”