Four people have died after a plane and a helicopter crashed in mid-air over Buckinghamshire.
Two people were killed in each aircraft, Thames Valley Police said.
Police and the Air Accidents Investigation Branch (AAIB) said they have launched a joint investigation to establish the cause of the collision just after midday at Waddesdon Estate, near Aylesbury.
A Wycombe Air Park spokesman said both aircraft came from the airfield.
Follow Us on Facebook – @LadunLiadi; Instagram – @LadunLiadi; Twitter – @LadunLiadi; Youtube – @LadunLiadiTV for updates
