TWO drivers were seriously injured in a collision that closed part of the A420 on Sunday.
Four people in total were hurt and taken to hospital after the crash, which happened near Watchfield at 7.55pm.
A silver Vauxhall Insignia, which had been travelling from Oxford towards Swindon, was involved in a crash with a silver Volkswagen Golf travelling in the opposite direction.
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Police said both drivers were 'seriously injured' while two passengers in the Golf suffered less serious injuries.
They were all taken to the John Radcliffe Hospital in Oxford, where they remain today.
The road was closed for several hours near the junction with the B4508, which is where the cars collided.
Traffic in the area in the hours afterwards, shown on Google Maps
Investigating officer PC Duncan Vale, of the Joint Operations Unit for Roads Policing based at Bicester, said: "This collision happened in the early evening on what is usually a busy stretch of the A420.
"I am appealing for anybody who may have seen the collision, or either of the vehicles described leading up to the collision, to please make contact with police.
"Anybody who has mobile phone or dash-cam footage of this incident, please get in touch to assist with this investigation."
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He said the two drivers were in a 'serious but stable condition in hospital.
Anyone with information can call 101, quoting reference 43200062734, or make a report via the force's website.
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