AN AIR ambulance, land ambulances and police cars have swarmed around a barn in a farmer's field in southern Oxfordshire.
*UPDATE*: 'Serious medical emergency' in field.
A woman has now died at the farm - read latest here.
Eye witnesses said the air ambulance helicopter landed in the field in East Hendred shortly after 11.30am this morning.
They said there are also three land ambulances, a police van, two unmarked police cars and one normal squad car on the scene.
Read also: Dramatic moment van catches fire on A34
The barn is in the middle of a field just north of the A417 in East Hendred, behind a new housing development.
One resident of the new estate, who asked not to be named, said that there is one large, locked barn in the centre of the field, and one open-sided barn used to store hay.
He said children often played in and around the barns.
One eyewitness in the area has said she thought she could see paramedics treating a patient in the field.
The path leading up to the barns is a public footpath which leads to nearby Steventon, and is regularly used by people to get between the villages.
No more information is currently known about the incident.
Thames Valley Police and South Central Ambulance Service have been asked for more information.
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