The investigation into a fatal crash in Cardiff which was followed by riots is continuing as police outline the timeline of events leading up to the collision.
Kyrees Sullivan, 16, and 15-year-old Harvey Evans died in the collision in Ely on Monday evening and police have confirmed that an electric bike was recovered from the scene.
South Wales Police and Crime Commissioner, Alun Michael, previously denied there had been a police chase in the minutes before the collision.
Several pieces of CCTV footage obtained by Sky News showed a police vehicle following two people on a bike minutes before the crash.
At a press conference on Wednesday, Deputy Chief Constable Rachel Bacon outlined the timeline of events on Monday evening based on information the force has gathered.
At 17.59.40 CCTV showed the bike travelling towards the police vehicle in Frank Road before it turned around.
As previously seen on CCTV footage, the bike was then followed by the police vehicle at 18.00.52 without blue lights or sirens.
Cardiff crash: Schools pay tribute to Kyrees Sullivan and Harvey Evans
Welsh Water to pay customers £10 each over inaccurate leakage data
Cardiff riot: Mum of teen killed in Cardiff crash says son was ‘loving’ and not ‘how media portrayed him’
Please use Chrome browser for a more accessible video player
The police vehicle was at New Ely Church roundabout at 18.01.18 and travelled through Archer Road, Stanway Road and Howell Road, before it turned on to Grand Avenue at 18.02.31.
Police say the crash happened in Snowden Road between 18.02.18 and 18.02.41 and the police van was in Grand Avenue half a mile away from Snowden Road at this time.
The police vehicle was in Cowbridge Road West at 18.06.59 when it received information about a road traffic collision and it travelled to the scene with its blue lights illuminated.
At 20.20 South Wales Police posted on Twitter that the road was closed between Wilson Road and Jackson Road after a serious road traffic collision in Snowden Road, Ely, and asked people to avoid the area.
At 21.18 police asked the public to “avoid speculation” and said all their updates would be factual.
Police confirmed at 23.15 that the collision had already occurred before they arrived at the scene and that officers were still trying to “manage a large scale disorder”.
At 01.09 on Tuesday, police said a number of vehicles were set alight and arrests were made.
Police remained at the scene until the early hours of the morning and said 15 officers were injured with 11 requiring hospital treatment.
South Wales Police have now arrested nine people in connection with the disorder that followed the collision, five of them were arrested early on Thursday morning.
Read more:
Police force refers itself to watchdog over CCTV
Community tries to stay calm after tragedy and violence
Be the first to get Breaking News
Install the Sky News app for free
The Independent Office for Police Conduct has said it is independently investigating the actions and decision-making of police involved after it received a mandatory referral from South Wales Police.