The mother of a 15-year-old boy who died in a police pursuit crash in Norfolk has described him as a "cheeky, lovable, normal teenager".
Ryan Youngman, of Gorleston, was in a Ford Fiesta which collided with a wall in High Street, Caister, on 2 February.
The Independent Police Complaints Commission (IPCC) is investigating the incident and wants witnesses to contact them.
Norfolk Police said it was responding to reports of an aggravated burglary.
Ryan's mother, whose name has not been released, said in a statement: "Recently Ryan and his girlfriend had been very close and these were some of the happiest times of his life.
"He loved hanging around with his friends, wearing nice clothes, take-aways and his mobile phone.
"Ryan was a very popular person that got on with everyone, this shows in the number of tributes on his Facebook page, and as a family we thank everyone so much."
'Black box' downloaded
The IPCC said it would look at officers' contact with the police control room and the training of the drivers involved.
House-to-house inquiries have been carried out and IPCC investigators have retrieved CCTV from the route of the pursuit.
Information from a police car's "black box" has also been downloaded and will be analysed shortly, the IPCC said.
A number of police cars were stationed in Caister late on 1 February in an effort to trace the offenders in an aggravated burglary, it added.
Just after midnight, police officers in one of the vehicles, on the Caister bypass and Yarmouth Road roundabout, became aware of a silver Ford Fiesta, in which Ryan was a front seat passenger.
They began following the car and after briefly losing it, began a pursuit, the IPCC said.
The pursuit continued on to Caister High Street, where the Fiesta hit a brick wall.
The Fiesta's 17-year-old male driver, an 18-year-old man and a 17-year-old girl were injured.
All three were arrested on suspicion of aggravated burglary.