A 65-year-old man has been arrested on suspicion of murdering landscape architect Joanna Yeates.
Police arrested the man at an address in Canynge Road, Clifton, Bristol at 7am on Thursday and took him into custody for questioning over the 25-year-old's death.
Avon and Somerset Police have not confirmed the identity of the man, but it is believed to be Ms Yeates's landlord Chris Jefferies who lived in his own flat at the same address.
The arrest comes after Mr Jefferies, a retired public school teacher, appeared to make contradictory comments about whether he had seen Miss Yeates leaving her flat with two people on the night she disappeared.
Forensic officers in white overalls have been going in and out of of the basement flat where Miss Yeates lived.
A silver Chrysler car which was parked on the road outside the house and a grey Volvo S40 parked on the driveway of the property have been removed by police.