University of East Anglia lake body: Divers search begins
Fire service divers have begun a search of the lake in Norwich where a woman's body was found last week.
The corpse was found by an angler at the University of East Anglia Broad on Thursday morning.
Norfolk Police have yet to identify the woman although they have released a picture of the black and white dress she was found wearing.
Officers said they were hoping they can find a bag, purse or some other item which will tell them who she was.
The woman is believed to be in her late 30s to early 40s and had short dark brown hair that appeared to be dyed auburn or deep red.
She was 5ft 7in (1.7m) tall.
A post-mortem examination proved inconclusive and further toxicology tests continue.
Police are treating the death as unexplained, although they have said there is no evidence to suggest she was the victim of violence or that any other person was involved.
Another angler found a shoe in the lake at the weekend, but police are not linking it to the woman at the moment.
Det Insp Richard Graveling said: "Officers have carried out land searches of the immediate area which have failed to uncover anything which could assist the investigation.
"We are keeping an open mind as to the circumstances surrounding the discovery [of the woman] and hope the water will assist in our enquiries."
Divers were expected to be on scene for several hours.