The collision involved a black Mitsubishi L200 and a blue Skoda Fabia.
One man remains in hospital, having suffered serious injuries.
A 17-year-old male was arrested on suspicion of causing serious injury by dangerous driving and driving whilst over the prescribed limit.
He has since been released under investigation.
The road was closed for collision investigation and re-opened at approx. 5.20pm the same day.
Anyone who may have been travelling along the A40 at the time, is asked to contact police. Police particularly wish to speak to the driver of a blue Peugeot who was driving ahead of the Mitsubishi.
Investigating officers would particularly like to speak to any motorists who were in the area at that time who have dash cam in their vehicles. Also any premises with CCTV in this area are urged to contact the Police.
Quote reference 25*680344
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