Becky Watts' mum Tania, grandmother Pat and brother Daniel Watts, have issued the following statement saying they are devastated by the latest developments:
Body parts have been found at a new location in the Barton Hill Area of Bristol, and now seven people are being questioned by officers.
Police announced four men and one woman all in their 20s have also been arrested - a man and a woman were already being held in police custody.
Watch the latest update from Detective Superintendent Mike Courtiour:
***NOTE the police have made a correction that they have arrested four men and one woman (not three men and two women which is said in the video)
Police have announced that body parts - believed to be Becky's - have been found at a Barton Hill property. Formal identification procedures are underway.
A further three men and two women have been arrested.
Read the police statement in full:
Last night police say they made 'a significant development' in their investigation to find Becky Watts.
Further information will be revealed at 10am.
Police are appealing for witnesses following a serious accident on the M5 this morning.
A silver Nissan, driven by a 34 year-old man, overturned at junction 9 travelling northbound at around 5.45am.
The motorway was closed between junction 11 and junction 9 northbound while the man was cut out of the vehicle by the fire service. His injuries are not thought to be life threatening.
The vehicle is being recovered and one lane is now open.
The family of missing teenager Becky Watts has made an emotional appeal after it emerged police are now treating her disappearance as suspected murder.
The 16 year-old hasn't been seen for 12 days. Avon and Somerset police are continuing to question a 21 year-old woman and a 28 year-old man on suspicion of her murder.
Despite continued searches, Becky still hasn't been found.
Parents in the south west spend £180 million a year on school uniforms for their children - according to research by the Children's Society.
Charity 'the Wrong Blazer' says that around ninety-five per cent of parents say the amount they are expected to pay for their children's uniforms is 'unreasonable'.
The research shows that over 100,000 children in the region have gone to school in incorrect uniform.
Somerset County Council has announced that it will be cutting mobile library services in the county by over half.
Just over two hundred of the five hundred and seventy four stops currently operating will remain - and a further fifty stops will be merged.
The planned changes follow a public consultation.
Plans to build a residual waste facility on green belt land in Bath will be reviewed today.
The owner of the old Fullers Earth site, applied to build on the land last year - where he already operates a recycling plant.
Bath and North East Somerset Council received 250 objections to the plans from organisations such as Project Bath and the Bath Preservation Trust - as well as local residents.
Their case will be heard today at Bristol High Court.