Detectives were last night continuing to question a man arrested on suspicion of the murder of Joanna Yeates, having been given extra time to hold him.
The 32-year-old man suspect was detained early on Thursday after police investigating the 25-year-old landscape architect's death uncovered fresh evidence.
Soon afterwards, specialist search teams moved into a neighbouring flat in the building where Miss Yeates lived at 44 Canynge Road, Clifton, Bristol.
Dutch engineer Vincent Tabak, 32, is registered as living at the address with his girlfriend, Tanja Morson.
Yesterday, forensic examinations were continuing at the converted Victorian property where they lived, protected from view by scaffolding and a 12ft high green tarpaulin which covered the entrance to Flat 1, where Mr Tabak lived, and the rear of Miss Yeates's rented home that she shared with her boyfriend, Greg Reardon, 27.
Specialist teams were also continuing to search a converted terrace property about a mile away in Aberdeen Road, Cotham, where it is believed Mr Tabak was arrested.
A huge police operation swung into action after Miss Yeates's body was found on the verge in Failand, North Somerset on Christmas Day.
Police have said there was no evidence that she had been sexually assaulted but they have not ruled out a sexual motive.
It is understood they are investigating whether Miss Yeates's body was taken from her home in a large bag or suitcase because there were no drag marks on her body or clothing.
Avon and Somerset Police, who have refused to name the man in custody, said in a brief statement: "This afternoon, police have been to court and successfully applied for a warrant of further detention, which will enable us to continue to question the 32-year-old man we arrested yesterday until late tomorrow evening.
"We are therefore unable to comment any further on this investigation at this time."