Several people feared dead following a mid-air collision between a helicopter and a plane over Buckinghamshire.
Wreckage from both aircraft is believed to have landed in the estate grounds of Waddesdon Manor, near Aylesbury, on Friday afternoon.
At least seven fire trucks, including three urban search emergency vehicles, were sent to the site along with six fire officers who also launched the fire brigade drone to look for any survivors.
Staff from the Waddesdon Estate helped direct emergency vehicles to the scene as police erected a large cordon.
Staff from the Air Accident Investigation Branch (AAIB) were also sent to the area, but police said the priority is being placed on saving lives, according to Sky News.
