A second probe into South Wales Police has been launched by the Independent Office for Police Conduct (IOPC) in relation to a crash in which two teenagers died.
Kyrees Sullivan, 16, and 15-year-old Harvey Evans were riding on an electric bike at the time of the collision in the Ely area of Cardiff.
The fatal crash in May was followed by riotous scenes which saw cars set alight.
The fresh investigation by the watchdog into the incident is focused on complaints made by the boys’ families.
It is separate from another investigation into the interactions of South Wales Police officers with the teenagers before their deaths.
CCTV emerged appearing to show a police van following the bike moments before the collision.
The IOPC says that investigation is now at “an advanced stage”.
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The complaints made by the families of Harvey and Kyrees include South Wales Police’s response and management of the collision scene on the night of 22 May, the IOPC said.
They also include the force’s treatment of the families at the scene of the collision and its communication with the families after the teens’ deaths.
Harvey’s family said their hearts were “truly broken” after his death.
They said he had lived “life to the full” and was someone who had a “big heart”, adding that “deep down, he truly cared”.
His family also appealed for “peace within the community” and asked people to allow the police to investigate and “get the answers we so desperately need”.
Kyrees was a “handsome young man” and a “loving son and brother”, his family said.
They added that he and Harvey “went everywhere together” and were loved “not only by their families but by their community as well”.
The IOPC said evidence gathering from its enquiries in Ely has been “completed”.
“We have identified further lines of enquiry which we are now pursuing as a priority,” a spokesperson added.
In June, the driver and passenger of the police van were issued with gross misconduct notices.
The following month, the IOPC confirmed the driver of the van was under criminal investigation for dangerous driving.
They emphasised that this did not necessarily mean disciplinary or criminal proceedings would follow.
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IOPC director David Ford said the watchdog’s sympathies remained with the boys’ families “and everyone impacted by their untimely deaths”.
“We are independently investigating several complaints raised by their families, which are mainly centred around their interactions with South Wales Police on the night of the incident and in the following days and weeks,” he said.
“Decisions regarding any disciplinary proceedings and any referral to the Crown Prosecution Service will be made upon the conclusion of our investigation.”
Sky News has asked South Wales Police for its response.
