The body of an 11 year old girl has been found at a house in Bushey
Rebecca Thompson's body was discovered in Homefield Road, Bushey just after midday on Saturday (June 22.)
A Home Office Pathologist is due to carry out a post mortem on Rebecca's body tomorrow (Tuesday).
Rebecca was a pupil at the Sacred Heart Primary School in Bushey.
Rita Cooper, head teacher at the school, said:
"It is with great sadness that we heard of the death of Rebecca, who was in year 6 at Sacred Heart.
"Rebecca was a lovely girl who was hard working and did well in her learning. She was looking forward to secondary school.
"The whole school is very distressed by this tragedy and our thoughts are with her family and friends. Our immediate concern is to do what we can to enable both children and staff at the school to cope with their shock and grief."
A 52-year-old man has been arrested in connection with the death.
He's in police custody at a hospital where he is being treated for serious injuries that he received in high speed car crash at around 12:15am on Saturday (June 22) at the nearby Elstree Hill roundabout.
He was in a grey VW Golf registration number OV61 NVK- detectives are keen to hear from anyone who either witnessed the collision or saw the vehicle prior to the crash taking place.
Herts police say the arrested man will be interviewed in due course once he has been deemed fit by medical staff.
The Beds, Cambs and Herts Major Crime Unit has launched a major investigation.
The scene around the property has been sealed off as detectives and specialist teams gather evidence and undertake inquiries.
Detective Inspector John Arthur, from the Beds, Cambs and Herts Major Crime Unit is leading the investigation. He said:
"The death of a child is always tragic and understandably many people will be devastated and concerned by what has happened. Our thoughts are with Rebecca's family and friends at this terrible time.
"Detectives and specialist teams investigating the circumstances surrounding Rebecca's death are working to get a better understanding of the facts in this tragic case.
"I have two key appeals to make from the public ' Did you see the VW Golf which would have been driven at high speed just prior to the crash at the Elstree Hill roundabout in the early hours of Saturday morning? This is a very important element to this investigation.
"I am also very keen to hear from anyone who saw, or knows where Rebecca had been during Friday 21st June. Who was she with? Where was she and what time? Anyone with information is urged to contact either 101 or the incident room directly on 01707 355666."