From ITV News
Mid-air collision: aircraft came from Wycombe Air Park
A helicopter and an aircraft have been involved in a mid-air collision over Buckinghamshire.
Both of the aircraft are understood to have come from Wycombe Air Park and collided near Waddesdon shortly after midday.
A spokesman for the airstrip, near High Wycombe, said: "Wycombe Air Park can confirm that at 12 o'clock local today we were informed of an incident north-west of Aylesbury involving two aircraft from Wycombe Air Park."
Emergency services including air ambulance are currently at the scene.