THE A40 was partially blocked following a two-car collision.
Traffic was queueing in both directions near the Wolvercote Roundabout, but all lanes have now reopened.
A spokesman for South Central Ambulance Service said an ambulance was called to the scene at 2.54pm.
He added two people had been treated for minor injuries.
Thames Valley Police said the fire service was called to help with the recovery of the cars.
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