Tiffany Regis has been officially named as the 15-year-old victim of a fatal fire in Beckton.
Police have confirmed that the schoolgirl died of smoke inhalation after a blaze in a block of flats in Tollgate Road on Thursday (April 6).
The post-mortem examination at East Ham Mortuary was described as "inconclusive", but police say they believe Tiffany was the victim.
The fatal fire is being treated as arson. A 16-year-old boy was arrested last week on suspicion of murder and subsequently bailed to a date in May pending further enquiries.
Mayor of Newham, Rokhsana Fiaz, said that she, and everyone else in Newham, was “deeply upset” by the loss of Tiffany.
Emergency services were called to the block of flats in Tollgate Road at around 5.30pm on Thursday.
Tiffany died at the scene and five others at the address were injured. They have since been discharged from hospital.
Police initially said that a 14-year-old girl had died in the blaze, although it has now been confirmed that Tiffany was aged 15 at the time of her death.
Witnesses said they watched people jump from windows onto a mattress to escape the fire.
Mayor of Newham Rokhsana Fiaz, said: “Tiffany’s parents are going through unimaginable pain at the loss of their much loved 15-year-old daughter who brought so much joy.
“I am deeply upset by this tragic loss of a young life, as is everyone in Newham.
"My thoughts and prayers are with Tiffany’s parents, family and friends at this very difficult and heart-breaking time. I am urging anyone with any information to contact the police incident room.
"Our priority is to support Tiffany’s parents grieving the loss of their child, and all those young people who have lost a dear friend.”
A crime scene and safety cordons remain in place at the block of flats while police enquiries are ongoing.
Detective Chief Inspector Joanna Yorke, of the Met’s Specialist Crime Command, said: “My team continues to piece together the circumstances surrounding the fire last Thursday.
“I know that there were a number of young people and residents inside the address before the fire happened and our enquiries are ongoing to identify everyone who was there, not least of all to ensure that everyone is okay.
“We are at the very early stages of our investigation and are still keen to hear from anyone who was present or has any information but has not yet spoken with police. Please get in touch.”
Anyone with information about the incident is urged to either call 020 8345 3865, 101 or Tweet @MetCC quoting reference CAD 5315/06Apr.
To remain anonymous, members of the public can call the independent charity Crimestoppers on 0800 555 111.
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