Becky Watts' Stepbrother Being Questioned

Detectives investigating the disappearance of 16-year-old Becky Watts have until this afternoon to charge or release Nathan Matthews, who is reported to be her stepbrother, and his girlfriend Shauna Phillips.

The pair, who are aged 28 and 21, are believed to have been arrested on Saturday on suspicion of kidnap and later re-arrested on suspicion of murder.

Avon and Somerset Police said on Wednesday that Ms Phillips was taken to hospital overnight after feeling unwell in custody. She was seen by a doctor and taken back into custody a short while later.

Becky disappeared from her home in Crown Hill, in the St George area of Bristol, on 19 February.

Body parts were found at a house in the Barton Hill area of the city, close to the home of Mr Matthews and Ms Phillips, which has also been examined by forensic experts.

However, police said formal identification procedures have not yet been completed.

On Tuesday, Avon and Somerset police revealed four other men, two aged 29 and two aged 23, and a 23-year-old woman, had been arrested on suspicion of helping an offender.

Officers were granted a further 24 hours to question the five by a magistrate on Wednesday. They all remain in custody.

Becky's aunt, Sarah Broom, wrote on Facebook: "So today my brother got his baby girl back - 12 days of pure hell filled with heartache.

"He is completely and utterly broken and there is nothing in this world of comfort to him - how does a parent ever recover from this? How can a family?

"So with tears rolling down my face, Becky you beautiful beautiful soul, you have touched so many hearts and changed so many lives.

"You do not leave behind a legacy of anything other than pure heartfelt love and you, you beautiful girl, will live on forever in the hearts of all those that have carried you in theirs the last 12 days and of course those that carried you in your lifetime."

Her uncle Joe Galsworthy wrote: "U were a shining light in this dark world and as I lay in bed tonight I'll gaze and the stars and I kno the brightest one I see will be you smiling back at me, u are at peace now my beautiful beautiful niece.

"Sleep tight and never forget a family's love is immovable, an uncle's love is inseparable, and for shy 16-year-old girl who was afraid to meet new people u single handedly brought a city together."

In a statement, Becky's family said they were "at an utter loss to understand why anyone would want to hurt our beautiful Becky in such a brutal way".

The search since Becky was reported missing on 20 February has triggered a social media campaign and has reached more than four million people.

Tributes have been left close to the site of the discovery and also at the gates of Becky's home.