At 6.45pm on October 31, a white Volkswagen Transporter van collided with a black Toyota Corolla at the roundabout connecting the A3 with Bedhampton Hill.
The white Volkswagen then collided with a Silver Vauxhall Corsa at the roundabout connecting Bedhampton Hill and Portsdown Hill Road. The van then came to a stop nearby and the occupants left the vehicle.
The driver of the Vauxhall Corsa, a woman in her 70s, sustained a head injury and is recovering at home.
A spokesman for Hampshire police said: ‘Did you see these collisions or the aftermath?
‘Do you have dashcam footage showing what happened?
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‘Please call us on 101 or report on our website, quoting reference number 44210437214.
‘Alternatively, you can call Crimestoppers 100 per cent anonymously on 0800 555 111.’