Cows on the loose and a horsebox were involved in a collision on the busy A40 Oxford to Witney road near Eynsham yesterday morning.
The horsebox overturned in the incident.
Thames Valley Police said a Land Rover that was pulling the horse box was involved in a collision with the cows at about 7.30am.
The road was blocked for a short time, causing delays, but South Central Ambulance Service said no one was injured. There were no details of injuries to any of the animals.