The family of a 15-year-old boy who died after a car overturned say they are "totally devastated and heartbroken".
Tributes have been paid to "caring" William Kingham, following the fatal collision on Kenilworth Road in Knowle, West Midlands, at around 9.30pm on Monday (23 November).
West Midlands Police say they still cannot be sure who was behind the wheel of the car at the time of the crash, Birmingham Live reports.
In a statement his family said: "William was a loving son and grandson and a caring and funny brother. We are all totally devastated and heartbroken to have lost him so early in such cruel circumstances and will miss him dearly."
The teenager from Solihull was confirmed dead at the scene of the crash, and a 15-year-old girl was taken to hospital with injuries.
Police reported the Renault Clio vehicle which the pair were travelling in had flipped onto its roof.
An investigation into the crash has led to the arrest of the driver of a second car on suspicion of causing death by dangerous driving.
The 19-year-old man has since been released under investigation.
Detective Sergeant Paul Hughes, from West Midlands Police serious collision investigation unit, said: "The death of William has clearly had a massive impact on those who knew him and the wider community.
"I’m aware there are rumours circulating and I’m again asking for people not to speculate on the circumstances, it does not help our enquiries or families we're supporting.
"Following our initial enquiries it’s currently unclear who was driving the Renault Clio when it flipped over, and we're working hard to establish exactly what happened on Monday night.
"We understand there are a mixture of emotions from a range of people during this difficult time. But we need everyone to trust us to do our roles and get answers.
"No-one has currently been charged with any offences and we are keen to hear from anyone with any information to contact us directly."
"We can be contacted via Live Chat at west-midlands.police.uk between 8am and midnight, by email at [email protected] or call 101 anytime."